问题
You ____ very happy today. Why—Because we are going to spend the evening at Lily’s house.
A:after
B:when
C:before
D:as;
B:when
C:before
D:as;
正确答案是：
同类题型
th Olympic Games, ______ between July27 and August 12 in 2012, will take place in London.
25The concert__ to _ some money for those suffering from the earthquake, which __ 2,000 lives
I find this Math problem very ______. Ibelieve students can work it out ______.
Can children under the age of 12 ride bicycles in your city—No， according to the law，they .