Generally speaking, students’ inner motivation with high expectations from others       essential to their development.
#85639
A
is
B
are
C
was
D
were
推荐题目
------ Why does the lake smell terrible? ------ Because large quantities of water _________.
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A
have been polluted
B
has polluted
C
have polluted
D
has been polluted
The number of students in our school ____about 30,000 and ______them study hard.
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A
is; a large amount of
B
are ; a number of
C
are ; large amount of
D
is ; a large number of
One or perhaps more pages _______.
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A
is missing
B
has been missed
C
are missing
D
was missing