英语题，急急急！！！

By the time you arrive home,I__,so please don’t make any noise whenyou come in.
A shall have been sleeping B shall have slept
C shall sleep Dshall be sleeping
答案是D 为什么不选A
解答：这句话的意思，你要先弄董就不难理解了。“当你到家时，我正在睡觉，所以当你进来时请不要弄出声音。
这是将来进行时，当我正在进行睡觉的时候。

Our car __ at the present speed until it reaches Qingdao at about nine o’clock tonight.
A went Bis going C goes D will be going
这句话什么意思？
答案：B
我们的汽车以目前的速度能在今晚9点以前到达青岛。

you can fly to Japan this afternoon__you don't mind changing planes in Hongkong.
A provided B because C unless D so far as
选a,倘若你不介意在香港换班机的话，你这个下午就可以飞往日本。

Mary finally__Bruce as her life-long companion.
A received B.accepted C made D honoured
答案A 为什么不选B receive,accept有什么区别
receive 着重强调收到，接受，（不随主观意愿的）
accept 强调以“愉快的态度”来接受。
这句中finally强调最终，说明mary不是主观的接受bruce而是被动的接受，不是愉快的事情。

__the day went on,the weather got worse.
A with B since C.while D a