问题
选择题
—Look ______ the two children, they're Nick and Lily.
—Oh, they're twin ______. [ ]
A. at; brother and sister
B. /; brothers
C. of; sisters
D. after; boys
答案
答案：A
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—Look ______ the two children, they're Nick and Lily.
—Oh, they're twin ______. [ ]
A. at; brother and sister
B. /; brothers
C. of; sisters
D. after; boys
答案：A