________ hard is the key to success.
#51086
A
To work
B
Work
C
Worked
D
Works
推荐题目
My sister spends as much time as she can_______.
#48623
A
practicing to dance
B
practice to dance
C
practice dancing
D
practicing dancing
______nature reserves _______us learn more about protecting animals.
#48781
A
Studying ; help
B
Studies ; helps
C
To study; helping
D
Studying; helps
–What did you find in the zoo?–The animals _______ in tiny cages and they could hardly move at all.
#50459
A
keep
B
kept
C
were kept
D
were keeping