The tablecloth _____ 18 by 20 feet.
A. is measured B. measures C. measure D measuring
I can’t stand ________ with Jane in the same office. She just refuses _______ talking while she works.
| A．working ; stopping | B．to work ; stopping |
| C．working ; to stop | D．to work ; to stop |
I’m considering _______ a washing machine, which is considered ________ a great help to my wife.
| A．buying ; to be | B．buying ; being | C．to buy ; being | D．to buy ; to be |
By the time he was twelve, Edison ________ to make a living by himself .
| A．would begin | B．has begun | C．had begun | D．was begun |
Ladies and gentlemen, please fasten your seat belts. The plane __________.
| A．takes off | B．is taking off | C．has taken off | D．took off |
----What a beautiful picture!
----It’s years ______ I painted a picture as beautiful as this one.
| A．that | B．since | C．when | D．before |