题目内容

【B2】

A. First
B. At last
C. At first

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【B5】

A. Since
Because
C. For

Each of the nine squares marked 1A to 3C in the grid should incorporate all the lines and

A. 1A
B. 2C
C. 3B
D. 3C

______ On an extremely hot day, sweating to cool your body effectively will occur when the

A. T
B. F
C. NG

【B7】

A. took
B. held
C. made