Many a student _____ the importance of learning a foreign language.
A. have realized
B. has realized
C. have been realized
D. has been realized
A. have realized
B. has realized
C. have been realized
D. has been realized
【答案】
A. have realized
B. has realized
C. have been realized
D. has been realized
A. have realized
B. has realized
C. have been realized
D. has been realized
【答案】
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