— Hi, Johnson, any idea where Susan is ?
— It’s class time, so she________in the classroom now.
| A．can be | B．must have been | C．might have been | D．must be |
In ____late 19th century, Europe changed ______great deal and played an important role in ______international trade.
| A．the; a; the | B．the; the;不填 | C．the; a; an | D．the; a; 不填 |
They _______to finish the task before July, but they didn’t make it because of the terrible weather.
| A．succeeded | B．managed | C．attempted | D．thought |
It is said that his missing books were ______the possession of his former wife and they were valued____500,000$
| A．in ; to | B．in; at | C．under; at | D．to; for |
Tom is a stubborn and careful man; It took many hours to_______ him of my good idea and to give up his.
| A．ask | B．convince | C．remind | D．accuse |
The patient was warned _______ oily food after the operation.
| A．to eat not | B．eating not | C．not to eat | D．not eating |