Don't ________ other people's problems and make them your own.
A. get involved in
B. is involved in
C. be involved in
D. ge involved on
查看答案
He didn't go to the World Park because he ___________ there twice.
A. has been
B. had been
C. has gone
D. had gone
The harder you work, ______ grades you will get.
A. better
B. the better
C. he more good
D. good
When he opened his bag on the train, the found that he __________ to put the clean shoes in.
A. fogot
B. forget
C. had forgotten
D. would forget
Since I came to this school, I ______ as a volunteer.
A. have been working
B. have be working
C. worked
D. have being working
微信支付 
支付宝支付