My mind ________ just now, so I didn’t catch what he said.
| A．is wandering |
| B．was wandering |
| C．has wandered |
| D．had wandered |
－－The button in the kitchen is out of order.
－－_______.
| A．I’m really sorry to hear that. | B． No problem. It’ll be OK. |
| C． Anything else I can do? | D．Why not get Mr. Kidder to have a look |
The heart is believed to _____blood into veins(血管) which are netted all over the body, thus keeping a person alive.
| A．give | B．donate | C．circulate | D．pump |
______addition to being creative, perseverance and diligence are necessary qualities to be a good scientist.
| A．With | B．Of | C．In | D．For |
The gold loop discovered in the ancient tomb _____ to be _____ in studying the history of the Jin Dynasty.
| A．was turned out; valuable | B．proved; of great value |
| C．was proved; of great valuable | D．proved; much valuable |
Every day Mother sets about her housework ______ she returns from work. Which of the following is NOT OK?
| A．immediately | B．the moment | C．the minute | D．in no time |