The light bulb ______ by Edison in the middle of the 1780s.
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A
is invented
B
was invented
C
invented
D
invent
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Don’t worry. The children always work hard and the teachers _______ in class.
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A
always listen
B
are listening
C
are always listened to
D
are always listening to
---Mum,_______ I watch TV? ---No. Unless your homework _______________.
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A
could; finishes
B
can; will finish
C
may; is finished
D
can; will be finished
Bamboo can ___________ paper.
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A
used to make
B
be used make
C
be used to make
D
be used to making
Those people without children ________good care of by the government there.
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A
are taking
B
are taken
C
have taken
D
were taking