Now there are already robots _________ in factories.
#50464
A
working
B
to work
C
work
D
worked
推荐题目
It took her some time_______English in class．
#49634
A
to finish reading
B
to finish to read
C
finish reading
D
finish to reading
－How about ______ basketball this afternoon, Tom? －That’s a good idea.
#49481
A
play
B
to play
C
playing
D
plays
When we practice_______ English, we shouldn’t end up _______in Chinese.
#48481
A
speaking, to speak
B
to speak, speaking
C
speaking, speaking
D
to speak, to speak
John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out
It’s time for class. Mr.King asked all the children______down quietly.
#48926
A
sit
B
to sit
C
sat
D
sitting