--Look! Someone ________ the floor.
--Well, it wasn’t me. I went shopping just now.
| A．had swept | B．has swept | C．was sweeping | D．is sweeping |
相关试题
The reason ____ he was late for class was ____ he stayed up late last night.
| A．why; that | B．why; because | C．that; that | D．that; because |
.It’s about a time _____ there were black slaves in North America.
| A．where | B．when | C．how | D．that |
.Their leaders often come to see what difficulty the workers have ____ the plan .
| A．to carry out | B．carrying out | C．carri ed out |
D．with carrying out |
Big efforts have been made to __________ government expenses to a desirable level.
| A．cut down | B．cut up | C．cut in | D．cut off |
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