The light bulb ______ by Edison in the middle of the 1780s.
#44649
A
is invented
B
was invented
C
invented
D
invent
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The windows after school is over.
#44799
A
usually close
B
usually closed
C
are usually closed
D
are usually closing
The earth is our home. It ______________ well.
#44581
A
must be protected
B
should protect
C
need protect
D
need protecting
—____ the sports meeting is likely to be put off．—Yes，it all depends on the weather．
#44998
A
I’ve been told
B
I’ve told
C
I was telling
D
I told
— What a nice watch it is! — It's my birthday present. It in America.
#44480
A
make
B
makes
C
is making
D
is made