（2013·辽宁卷)Lauro was away in Paris for over a week.When she got home,there was a pile of mails for her
| A．waited | B．to wait | C．waiting | D．was waiting |
The secretary worked late into the night, ______ a long speech for the president.
| A．to prepare | B．preparing | C．prepared | D．was preparing |
—Tom graduated from college at a very young age.
—Oh,he__________have been a very smart boy then.
| A．could | B．should | C．might | D．must |
Michael ______ be a policeman, for he is much too short.
A. needn’t B. can’t C should D. may
Why!I have nothing to confess(坦白) . ______ you want me to say?
| A．What is it that | B．What it is that |
| C．How is it that | D．How it is that |
The road is covered with snow.I can’t understand ______ they insist on going by motorbike.
| A．why | B．whether | C．when | D．how |