That was so serious a matter that I had no choice but ______ in the police.calle
A. called
B. calling
C. call
D. to call
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_____ and short of breath, Andy and Ruby were the first to reach the top of Mount Tai.
A. To be tired
B. Tired
C. Tiring
D. Being tired
He regretted _______ the decision too hastily.
A. make
B. to make
C. making
D. have made
With two children_______ middle school in the nearby town now, the parents are working hard.
A. to attend
B. attending
C. attended
D. having attended
在( )视图下可以在同一屏上浏览到多张幻灯片。
A. 幻灯片放映
B. 幻灯片浏览
C. 幻灯片
D. 幻灯片母版