But for my friend's help, I___ the work on time.
A. did not finish
B. could not finish
C. will not finish
D. could not have finished
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___ is known to us all, the moon moves around the earth.
A. Because
B. For
C. So
D. As
With the flowers ___ everywhere, the national park looks fantastic.
A. blooming
B. bloom
C. be blooming
D. to be blooming
Some pop stars have much influence ___ the young people.
A. in
B. to
C. onto
D. on
No sooner had Jane entered the building___ the rain started.
A. when
B. than
C. as
D. while