There _________ an apple on the desk.
#43646
A
is
B
are
C
does
D
come
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E-mail, as well as telephones, ____ an important part in daily communication.
#85683
A
is playing
B
have played
C
are playing
D
play
A library with five thousand books ________ to the nation as a gift.
#86035
A
is offered
B
has offered
C
are offered
D
have offered
To get well, .
#86020
A
we are going to operate on the patient
B
an operation is necessary
C
the patient needs an operation
D
the doctor will perform an operation on the patient
While a huge amount of money ___been spent stopping pollution , large quantities of water_ _still heavily polluted．
#85937
A
have; is
B
has ;are
C
have; are
D
has ;has
It is important ______ students ______ carefully in class .
#43797
A
for, listening.
B
of , listen
C
for, to listen
D
of , to listen.