国家开放大学 / 综合英语(2)
_ _ _ _ _ _ they _ _ _ _ _ _ _ there already?
a.Can, arrive
b.Could, arrive
c.Can, have arrived
d. Could, have arrived
a.Can, arrive
b.Could, arrive
c.Can, have arrived
d. Could, have arrived
参考答案:
佳题速递: