______ without friends ______ the most difficult challenge for Chuck while living on the island.
#85606
A
How to survive, is
B
How does he survive, are
C
How does he survive, is
D
How to survive, are
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Many sheep _______ eating grass by the river.
#86185
A
is
B
are
C
is being
D
have
It’s 8 o’clock. The students _________ an English class.
#43918
A
have
B
having
C
is having
D
are having
We can see only one of the doors ______.
#44082
A
are opened
B
is closed
C
closes
D
are closed
She has set a new record, that is, the sales of her latest book ___50 million.
#86338
A
have reached
B
has reached
C
are reaching
D
had reached