Now there are already robots _________ in factories.
#50464
A
working
B
to work
C
work
D
worked
推荐题目
When the teacher comes, we all stop _______ and do our homework?
#51278
A
talking
B
to talk
C
talk
D
talks
--- Excuse me sir, where is Room 301?--- Just a minute. I’ll ask Bob ________ you to your room.
#48511
A
show
B
shows
C
to show
D
showing
He thinks playing computer games ________.
#50076
A
frustrated
B
frustrating
C
frustrate
D
to frustrate