英语问题,急啊!!!

Don't spent much time in playing games.It's a waste of time.(浪费时间)
The reason ___we were late is not good excuse.
[选D, The reason why…（……的原因），固定搭配。]
A.that B.which C.who D.why
We ____our homework yesterday.
〔没答案，要用did finish（确实完成了，did加强语气。），你D选项是否漏掉了？〕
A.do finish B.do finished C.did Finished
连词成句
is,up,she,used,staying,to
-- She is used to staying up.她习惯于熬夜。
context,help,using,new,can,words,you,learn,and,phrases
--Using context can help you learn new words and phrases. 结合上下文可以帮你学习生词和短语。
did,what,you,to,used,when,you,do,younger,were,you
--What did you used to do when you were younger? 你年轻时常做什么？

1.waste of time
2.D
3.ABC都不对....
4.She is used to staying up
Using context can help you learn new words and phrases.
What did you used to do when you were younger?

waste of time.
D
B
she is used to staying up
Using context can help you learn new words and phras