问题
Mr Green has two daughters, both of____ are doctors.
A:them
B:that
C:who
D:whom
B:that
C:who
D:whom
正确答案是：
同类题型
Many Chinese children have to take piano lessons, but few of them have ____ in it.
43It was not until 1936________basketballbecame a regular part of the Olympic Games44
下列各句加横线字活用现象分类正确的一项是（ ）①既来之，则安之②填然鼓之③是使民养生丧死无憾也④树之以桑⑤与少乐乐⑥使人先表澭水⑦赤也为之小
The sun heats the earth, ___________ is very important to living things.