The robot needs _______ once a month. And we will check it for you for free.
#48844
A
to check
B
checked
C
checking
D
to checking
推荐题目
You’ll have an English exam tomorrow. You’d better ____ watch TV this evening.
#48764
A
to not
B
not to
C
don’t
D
not
_______ milk is ________ your health.
#50088
A
Drinking, good for
B
Drink, good at
C
Drinking, good at
D
Drinking, good to
Listen! Do you hear the little girl ________ the violin in the next room? It sounds beautiful.
#50017
A
is playing
B
play
C
to play
D
playing
The two children always disagree. They often argue about what TV programmes ______.
#48740
A
watching
B
to watch
C
watched
D
watch