— Can we ask Jeff for help with our English? — You’d better not. He is the last person _______ others. 
#50652
A
helps
B
helped
C
helping
D
to help
推荐题目
Sarah always makes her son _______ his hands before eating. 
#48840
A
wash
B
washing
C
to wash
D
washes
 Mario used to _____________ in the morning.      
#48943
A
practiceswimming
B
practicingswimming
C
practiceswim
D
practicesswimming
Don’t throw away the waste paper. It needs        so that it can be reused.
#48488
A
to destroy
B
destroying
C
to collect
D
colleting