---I saw Mr. Smith at Xianyang Airport this morning.
---You ____. He’s still on holiday in Hawaii.
| A．can’t | B．couldn’t have | C．mustn’t have | D．needn’t |
It's good to know________the dogs will be well cared for while we're away.
| A．what | B．whose | C．which | D．that |
________ one of you breaks the window will have to pay for it.
| A．Whoever | B．Whatever |
| C．Whichever | D．Wherever |
Do not let any failures discourage you, for you can never tell______close you may be to victory.
| A．how | B．that | C．which | D．where |
________makes the book so extraordinary is the creative imagination of the writer.
| A．That | B．What | C．Who | D．Which |
—The patient looks much better.________ is it that has made him ________ he is today?
—Perhaps the special medicine and his family's patient care.
| A．What；that | B．That；that |
| C．What；what | D．What；which |