By the end of last year, they _______ 2,000 English words.
#36368
A
learned
B
have learned
C
had learned
D
learns
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Inthepast few years,thousandsoffilms all overtheworld.
#40491
A
have produced
B
have beenproduced
C
are producing
D
are beingproduced
The fishermen knew little about the island when they there.
#42792
A
arrived
B
would arrive
C
arrive
D
have arrived
Mr. Wu___this math problem____him many times, but he still doesn’t understand it.
#38768
A
explains ; to
B
has explained ; for
C
has explained ; to
D
explained ; with
--- 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