A Today's questions are not difficult at all.
B Why does my head hurt so much?
C Hey,I am downstairs.
D Go to bed after drinking this cup of milk.
E Of course, we will take a bus before changing the subway.
F Excuse me, is ZhouMing here?
Example: Do you know how to get there?

21.How can you keep fit if you always sitting in front of the computer after stepping into the office everyday.
22.Mom, I am too tired to read books.
23.He is out now and will be back at 10.
24.Okay, just give me a second.I'm going down now. 
25.It was easy because you were well prepared.

A.今天的题一点也不难
Today's questions are not difficult at all.
B.我的头怎么这么疼？
How does my head hurt so much?
C.喂，我到你家楼下了。
Hello, I'm downstairs of your house.
D.那喝了这杯牛奶就睡觉吧。
Then go to sleep after having this cup of milk.
E. 当然,我们先坐公共汽车,然后换地铁。
Of course, we’ll take a bus first and then change to the subway.
F.请问，周明在吗？
Excuse me, is Zhou Ming here?
例如:你知道怎么去那儿吗？
For example: do you know how to get there?
21.你每天进了办公室就坐在电脑前，身体能好吗？
You sit in front of the computer at the office every day. can you be healthy?
22.妈，我今天太累了，不想看书了。
Mom, I’m too tired to read books.
23.他现在出去了，十点回来。
He is out now，he will come back at ten.
24.好，你等我一下，我现在就下去。
Ok, please wait me for a minute, , I’m going down right now.
25.因为你准备的好，所以觉得很容易。
Because you prepared well, you think it’s very easy.