Mom sweeping robots ________more and more widely. Why not buy one?
A.are used B.were used C.are using D.used
________a big clock on the wall. Who took it away?
A.There is B.There was C.There will be D.There has been
This is an icy road. Please walk ________ on it.
A.loudly B.quickly C.carefully D.politely
Bob, you________finish your homework before you watch TV. This is the rule.
A.can B.may C.might D.must
When the storm stopped, the plane could ________.
A.take away B.take up C.take off D.take out
Many foreigners come to visit the Great Wall. It is the ________ of China.
A.effort B.praise C.courage D.pride
