[A] do
[ B ] produce
[C] make
[D] dive
查看答案
[A] Because
[B] Though
[C] If
[D] Unless
[A] Advise
[B] Allow
[C] Encourage
[D] Enable
How long do children usually stay at university in the man's country?
[ A]Three or five years.
[B] Three or four years.
[ C]Three to four years.