问题

How long do you think it is______ hearrived here—- No more than half a year, I believe.
A: when
B: that
C:before
D: since
B: that
C:before
D: since
正确答案是:
同类题型
The number of people who have had flu (流感) in America this month is________as last month[ ]
You can take away _________ you like most
It was in the lab, _______ was taken charge of by Mrs Smith, they found the missing necklace.
Excuse me. When can we play badminton at the court—Not until it next week.