Her boss wanted to stay in the hotel from the 23rd to the 25th of next month.
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There are hundreds of visitors________in front of the Art Gallery to have a look at Van Gogh’s paintings.
A. waited
B. to wait
C. waiting
D. wait
He looked around and caught a man ______his hand into the pocket of a passenger.
A. put
B. to be putting
C. to put
D. putting
只含0向量的向量组没有极大无关组。
A. 对
B. 错
只含0向量的向量组没有极大无关组规定它的秩为零。
A. 对
B. 错