The collapse of the World Trade Center has put US economy in a difficult __________.
| A．occasion | B．case | C．situation | D．background |
--- Do you know where David is ?
--- He was injured in the accident yesterday and ______ in the hospital.
| A．was treated | B．is being treated | C．is treating | D．was being treated |
It always takes me not so long to shop because I like to go directly to ______ I want to buy.
| A．where | B．which | C．what | D．that |
Many people are homeless in the Chile earthquake and ______ help.
| A．in terms of | B．in need of | C．in spite of | D．in favour of |
---I’m afraid I ______ return the book to you before Friday.
--- Take your time.
| A．must | B．may | C．needn’t | D．can’t |
. Not until _______ smoking ________ healthy lungs.
| A．did he five up, he had | B．did he give up, did he have |
| C．he gave up, he had | D．he gave up, did he have |