It was hard for him to learn English in a family, in which _____ of the parents spoke the language.
| A．none | B．neither | C．both | D．Each |
When we lived in that village, we ________ often play together in the river there.
| A．might |
| B．should |
| C．could |
| D．would |
—Isn’t that your boss over there?
—No, it ________ be him. I’m sure he is in the office now.
| A．can’t |
| B．must not |
| C．won’t |
| D．may not |
How ________ you say that you really understand the whole text if you have covered only part of it?
| A．can |
| B．must |
| C．need |
| D．may |
—Many houses near the airport were destroyed by the wind.
—Well, the wind ________ have been very strong.
| A．can |
| B．must |
| C．need |
| D．can’t |
—Must he come to sign this paper?
—Yes, he_______.
| A．need |
| B．must |
| C．may |
| D．will |