问题
选择题
（How time flies! We’ll graduate. Three years __________ really a short time.
A. was
B. are
C. is
D in
答案
答案：C
时间作主语时谓语动词用单数。由句意决定时态用一般现在时，故选C。
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（How time flies! We’ll graduate. Three years __________ really a short time.
A. was
B. are
C. is
D in
答案：C
时间作主语时谓语动词用单数。由句意决定时态用一般现在时，故选C。