Sometimes I doubt whether it is worth_______so_________.
#48751
A
to work;hard
B
to work;hardly
C
working;hard
D
working;hardly
推荐题目
He thinks _____ history about Chinese is very important.
#49013
A
studied
B
studying
C
studies
D
study
Students should do everything they can __their study.
#50600
A
improve
B
to improve
C
improving
D
improved
My sister spends as much time as she can_______.
#48623
A
practicing to dance
B
practice to dance
C
practice dancing
D
practicing dancing
