The new washing-machine has been______.
A. giving us trouble
B. getting us trouble
C. asking us trouble
D. looking for us trouble
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In the first half, we had the advantage _____ the opposing team.
A. of
B. than
C. over
D. upon
His ____ of the basic structure is good but his vocabulary is limited.
A. hold
B. grip
C. grasp
D. seizure
I ____ your office on my way to work.
A. call at
B. call for
C. call in
D. call on
商品经济的普及带来的必然结果是( )。
A. 庞大的商品堆积
B. 商品供应多样化
C. 激起了消费欲望
D. 商品和货币之间的矛盾