题目内容
-- Who ______ dinner yesterday?
-- My sister ______．
A．cooked；did B．did；cooked C．cook；did D．did；cook
A
Yang Zhenling and din Zhaozhong, ________ won the Nobel Prize, ________ world-famous scientists．
A．which, is
B．/, are
C．who, is
D．who, are
