问题

The country life he was used to _____ greatly since the opening policy. [ ]
A: has changed
B: change
C: changing
D: having changed
B: change
C: changing
D: having changed
正确答案是:
同类题型
Has your former classmate come back from America?—Yes, he _____ there for 8 years
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______all the homework assigned by theschool the students have to work at it till midnight
Would you mind closingthe window to keep out the noise—________.I’lldo it right away.