用所给单词的正确形式填空
I ___(be) to the shopping center twice this week. But last week I ___(go) there only once.

选择
1.Wang Lan ____ for ten days
A.left
B.has left
C.be away
D.has been away

2.____ we are clever,we must work hard
A.Even if
B.Though
C.Because
D.As if

3.____ the Internet ____ in your school?

Yes, but the computer in our offic has often broken down

A.Is,used
B.Is,using
C.Does,use
D.Has,used

4._____ will you be away?

In a couple of months.

A.How long
B.How often
C.How soon
D.How far

用所给单词的正确形式填空
I (have been) to the shopping center twice this week. But last week I (went) there only once.
注：根据上下文，意思是这个星期已经去购物2次了，但上星期才去过一次。第一空表示到现在为止已经完成的事实，所以用现在完成时。第二空看时间状语last week,一定是一般过去时态。
[have been to somewhere or to do sth:已经去(做)过...，到过...]
Have you been to London? 你到过伦敦吗?
The doctor has been to see the patient.
医生来[去]看过病人了。

选择
1.D Wang Lan (has been away) for ten days
根据选项以及时间状语for ten days,要用完成时态；而
leave做离开，前往解释，不是一个连续的动作，不能用完成时态
只能选D.
注意，leave做剩下解释，可用完成时态。

2 B Though
为什么不用even if 呢？
当让步状语从句的动词用一般现在时表示将来的假说或一般的行为习惯时，通常用even though/even if,一般不用though, although和as，如：
Even if/Even thouth I have to walk all the way,I’ll go there. 即使我得一路走着去，我也要走到那里。

更多让步状语从句的语法，请参阅：
http://www.chinaedu.com/eol/036gz/eol302_1.htm

3 A Is..used
【1】现在时态 【2】网络被使用，应该是被动式，只有A适合。
网络在你们学校被使用吗？=你们学校能上网吗？

4 A how long
--你打算离开多久？
--2个月吧！
A.How long : 多久，多长时间
B.How often ：多频繁，隔多久
How often do you go for shoping?你隔多久去购物？
C.How soon ：多快
How soon can you run?你能跑多快？
D.How far：多远
How far is the school from your home?
从你家到学校多远？