Professor Smith, along with his assistants,______ on the project day and night to meet the deadline.
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A
work
B
working
C
is working
D
are working
推荐题目
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
Since then, finding ways to grow more peanuts ______ his life goal.
#85969
A
has been
B
were
C
was
D
have been
Two-thirds of the land ________ covered with green grass and the rest _______ covered with pine trees.
#85976
A
is; is
B
is; are
C
are; is
D
are; are
______ Kitty ______ Cathy is going with you because one of them must stay at home.
#44172
A
Not only; but also
B
Neither; nor
C
Both; and
D
Either; or