David’s effort was ______, because he won the first prize in the English speech contest, which made his classmates surprised.
| A．paid off | B．paid back | C．paid for | D．paid up |
-----Hi, Nancy, I didn’t know you had come back. So have you graduated from college?
---- Yes. I _____ French for 5 years in Nanjing.
| A．have studied | B．studied | C．had studied | D．am studying |
---- Could I have a word with you?
---- Sorry, I am busy ______. Shall we do it later?
| A．at the moment | B．for a moment | C．on the moment | D．in a moment |
---Why didn’t you go to yesterday’s meeting?
---I would have but I ______ too busy working on the important experiment.
| A．had been | B．was | C．were | D．am |
According to the rules, students must not ____ their books during examinations.
| A．read | B．watch | C．notice | D．look at |
The summer is already here, and it _____ to be a most severe one.
| A．wants | B．hopes | C．promises | D．wishes |