— How long do you think it will be _______ the USA recovers from the losses of the financial crisis?
— Perhaps four or five years.
| A．when | B．since | C．that | D．before |
She was such a proud person that she would die ______ she would admit she was wrong.
| A．rather than | B．until | C．after | D．before |
— Did your sister pass the exam?
— She failed and is in low spirits.
— I'm sorry for her.
— ______.
| A．Thank you | B．You're welcome | C．I would think so | D．Never mind |
He is only too ready to help others, seldom, ______, refusing them when they turn to him.
| A．if never | B．if ever | C．if not | D．if any |
— How’s your tour around the North Lake? Is it beautiful?
— It ______ be, but it is now heavily polluted.
| A．will | B．would | C．should | D．must |
The house could fall down soon if no one ______ some quick repair work.
| A．does | B．has done | C．is doing | D．had done |