Now there are already robots _________ in factories.
#50464
A
working
B
to work
C
work
D
worked
推荐题目
Mr Smith told me that he wasn’t used to ___ by plane and he usedto __sick a lot.
#50880
A
travelling; feel
B
travel; feeling
C
travel; feel
D
travelling; feeling
He hurried back home________ his schoolbag.
#48731
A
fetched
B
to fetch
C
fetching
D
fetches
Jack had a wonderful time _____ many interesting places in Beijing and he had        much time __________ the city.
#50019
A
to visit; to enjoy
B
to visit; enjoying
C
visiting; to enjoy
D
visiting; enjoying
I saw him _______basketball with Jack an hour ago.
#49291
A
plays
B
to play
C
played
D
play