The zoo keeper is worried because the number of visitors ______ smaller and smaller .
#39433
A
is becoming
B
become
C
became
D
to become
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She_______ballet before she entered film industry.
#37587
A
has practiced
B
had practiced
C
will practiced
D
would practiced
---      you      the film before? ----Yes, I      it last year.
#42007
A
Did ; see ; saw
B
Have ; saw; saw
C
Have; seen; saw
D
Have; seen; seen
Look! Many people __________the buses at the bus stop. 
#39314
A
wait for
B
waited for
C
will wait for
D
are waiting for