.Your son has kept _________ for two hours. You’d better ask him to have a rest.
#51260
A
study
B
studied
C
to study
D
studying
推荐题目
It’s _________ of Amy to make the birthday card than ________ one.
#49412
A
much clever, to buy
B
cleverer, to buy
C
cleverer, buying
D
most clever, buy
I can’t stand _____ for you so long.
#50495
A
to wait
B
waiting
C
waits
D
waited