My uncle__________until he was 45.
| A.married | B.didn’t marry | C.was not marrying | D.would marry | 
— Your windows are still open? It’s so cold!
 — Oh, sorry. They_______ .
| A.aren’t closing | B.won’t close | 
| C.won’t be closed | D.aren’t closed | 
We believe the time and hard work _______ in completing such an important project are worthwhile.
| A.involved | B.involving | 
| C.to involve | D.to be involved | 
— Are you in favour of Tom’s suggestion_______ we work around the clock to meet the deadline?
 — No. But ______ Jimmy suggested to me sounds practical.
| A.which; what | B.that; that | 
| C.which; that | D.that; what | 
We attend lectures in the school meeting room at weekend _______ seats more than 800 students.
| A.which | B.whose | 
| C.where | D.it | 
How can you expect to get ahead in your life _______you even live to yourself from time to time?
| A.though | B.until | 
| C.before | D.when |