问题补充:
My set of keys old, but your keys are new.
A. am
B. is
C. are
D. be
答案:
A. am
B. is
(答案→)C. are
D. be
解析:本题的主语是复数,故be用are,故本题选C。
时间:2021-07-04 02:29:08
My set of keys old, but your keys are new.
A. am
B. is
C. are
D. be
A. am
B. is
(答案→)C. are
D. be
解析:本题的主语是复数,故be用are,故本题选C。