________ you watered the little tree frequently, it ________ as tall as I am now.
A. Had, would be
B. Have, is
C. If, would be
D. Should, could be
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It is essential that he ________ the task by next Friday.
A. fulfilled
B. fulfill
C. will finish
D. finishes
A terrorist group ________ responsibility for the bombing.
A. accused
B. claimed
C. demanded
D. cited
I left for the school earlier than usual this morning ________ traffic jam.
A. in terms of
B. in case of
C. for the sake of
D. at the risk of
John felt very ________ when everyone laughed at his question.
A. boring
B. complex
C. embarrassed
D. encouraged