Our country should set up more national parks        animals can live freely. 
#75752
A
when
B
which
C
where
D
whose
推荐题目
Those _________  may leave the classroom now.
#76899
A
whohasfinished
B
whohavefinished
C
havefinished
D
whomhavefinished
The students ________ are expected to pass.
#75236
A
were taught by Professor Deacon
B
whom were taught by Professor Deacon
C
when were taught by Professor Deacon
D
Professor Deacon taught