The teacher asked us what Halloween is, but nobody can __________ (answer).
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He __________(try) to ask for a free ride, but failed.
Grammar Exercises 语法练习Choose the best answer.选择正确答案。Elisa usually spends a lot of time __________ English.
A. to study
B. studying
C. study
How did Linda improve her English in such a short time? Her English __________ poor.
A. was used to be
B. used to be
C. is used to be
I ___________ my neighbour with his English homework yesterday evening.
A. helped
B. help
C. helping