Answer :
Here are the correct answers for each of the blanks:
We have been working on this project since last Monday. - The correct choice is B) been working. This is the present perfect continuous tense and is used here to indicate an action that started in the past and is still continuing.
Have you met my cousin, Pam? - The correct choice is C) met. This uses the present perfect tense to ask about past experiences up to now.
If you don't work hard, you will lose your job. - The correct choice is C) will lose. This is a first conditional used to talk about a possible future event that depends on another event.
I think I will take a taxi. - The correct choice is A) will take. 'Will' is used for decisions made at the time of speaking or about future events.
I've just made an appointment to see Dr Smith. - The correct choice is A) just. This is common in the present perfect tense to indicate something recently done.
Have you got any yoghurt? - The correct choice is C) any. 'Any' is used in questions and negative statements with uncountable nouns.
The train leaves at 4:00. - The correct choice is A) leaves. The present simple tense is used for scheduled events.
Can I have some tea, please? - The correct choice is B) some. 'Some' is used in offers and requests.
We are meeting Vera for dinner at 7:00. - The correct choice is C) are meeting. Present continuous is used for fixed, planned events in the near future.
I think there is someone in the room. - The correct choice is C) someone. 'Someone' is used for positive statements indicating a person is present.
They have been working here for ten years. - The correct choice is C) for. 'For' is used with a period of time.
Can you buy me a jar of honey? - The correct choice is B) jar. A jar is a common container for honey.
There is very little salmon left. - The correct choice is A) little. 'Little' is used with uncountable nouns to mean not much.
Have you spoken to Laura? - The correct choice is A) spoken. This is the past participle of 'speak' used in the present perfect tense.
I've looked everywhere but I can't find my glasses. - The correct choice is B) everywhere.
He left an hour ago. - The correct choice is C) left. This is simple past tense indicating an action completed in the past.
When you don't water plants, they die. - The correct choice is C) die. The simple present tense is used for general truths.
She has been in hospital for a week. - The correct choice is A) been. This is present perfect tense indicating duration.
"I can't solve this exercise." "Don't worry. I will help you." - The correct choice is A) will help. 'Will' is used for offers or promises.
There's a little cheese, we can make an omelette. - The correct choice is B) a little. 'A little' is used with uncountable nouns to mean a small amount.
Look out! You are going to crash into the tree! - The correct choice is B) are going to crash. 'Going to' is used for future plans or predictions likely to happen based on current evidence.
I'm afraid there is no milk in the fridge. - The correct choice is A) no. 'No' is used to indicate the absence of something.
How long has he been living here? - The correct choice is C) been. This is present perfect continuous tense, used for actions that started in the past and continue to the present.
Can I have some lettuce, please? - The correct choice is C) some. 'Some' is used in requests or offers.
How many cucumber slices do you want? - The correct choice is B) many. 'Many' is used for countable nouns to ask about quantity.
These answers focus on mastery of English grammar, commonly studied at the high school level. Each choice reflects standard usage patterns in English that are essential for both written and spoken communication.