问题

Listen! Do you hear someone _________ for help?
A:call
B:calling
C:to call
D:called
B:calling
C:to call
D:called
正确答案是:
同类题型
Did you have a good vacation— . I enjoyed myself with my family on the beach.
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We all hope to ________ time on the return journey by not stopping at night.
product ____ unsatisfactory within 7 days inany way, you can take it back
It is impossible to ________one’s goal without working hard.