________is it ________has made Peter ________he is today?
| A．What; that; that | B．That; that; what | C．What; what; that | D．What; that; what |
He is believed____________ in at his office on his way home.
| A．dropping | B．to have dropped |
| C．having dropped | D．to be dropped |
The boss____________ the worker how to do it, or the accident couldn't have happened.
| A．can't have told | B．ought to tell |
| C．could have told | D．mustn't have told |
She liked the dictionary so much that she would like to take it ____________ it cost.
| A．why | B．how much | C．whatever | D．how expensive |
Don't be joking. It's time to____________ your business.
| A．set out | B．take up | C．go on | D．get down |
It may not rain, but you had better take an umbrella__________.
| A．in case | B．as well | C．as least | D．in need |