作业帮Lang Lang （ ） as a UNICEF Goodwill Ambassador since 2004 when he went to Tanzania with a UN team to visit children threatened by AIDS.A has worked B has been workinC had been working D worked（ ）ever rising house prices in China,18 percent of
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Lang Lang （ ） as a UNICEF Goodwill Ambassador since 2004 when he went to Tanzania with a UN team to visit children threatened by AIDS.A has worked B has been workinC had been working D worked（ ）ever rising house prices in China,18 percent of
Lang Lang （ ） as a UNICEF Goodwill Ambassador since 2004 when he went to Tanzania with a UN team to visit children threatened by AIDS.
A has worked B has been workin
C had been working D worked
（ ）ever rising house prices in China,18 percent of mothers would be willing to let their daughters （ ） men who hace their own houses.
A Facing,to marry B Facing,and marry
C Facing,marry D Faced,marry
The Chinese athletes' getting five gold medals in the 21st Winter Olympics was an exciting moment,( ) that the Chinese people will never forget.
A that B it C the one D one
B D
算了
Lang Lang （ ） as a UNICEF Goodwill Ambassador since 2004 when he went to Tanzania with a UN team to visit children threatened by AIDS.A has worked B has been workinC had been working D worked（ ）ever rising house prices in China,18 percent of
第一题 为现在完成时的用法（即从过去某一时刻持续到现在）
第二题 我个人觉得选c 前一空-ing形式 与主语mother 构成主动关系
后一空 let 后加 动词原形
第三题 此题是高考题 one是an exciting moment 的同位语
第一题选B，从2004年起一直到现在，并且还要持续下去，用现在完成进行时。
第二题选C，前半句现在分词作伴随状语，也可以用faced with，后半句let sb. do sth.让（使）某人做某事；let/make/have sb. do sth.不带to的动词不定式，get sb. to do sth.带to
第三题选D，one指前面的an exciting moment，同位...
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第一题选B，从2004年起一直到现在，并且还要持续下去，用现在完成进行时。
第二题选C，前半句现在分词作伴随状语，也可以用faced with，后半句let sb. do sth.让（使）某人做某事；let/make/have sb. do sth.不带to的动词不定式，get sb. to do sth.带to
第三题选D，one指前面的an exciting moment，同位语从句。
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B、C、D
1.选择 A
句子后面有 since+过去的时间点（此题中为2004年），那么前面的主句用现在完成时，这是一条做此类题目的规律。
如：
I have worked in that bank since I came to Shanghai.
2.选择C
sb face sth 某人面临/面对 某种情况，所以 sb和face之间是主动的关系，face要变成fa...
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1.选择 A
句子后面有 since+过去的时间点（此题中为2004年），那么前面的主句用现在完成时，这是一条做此类题目的规律。
如：
I have worked in that bank since I came to Shanghai.
2.选择C
sb face sth 某人面临/面对 某种情况，所以 sb和face之间是主动的关系，face要变成facing。
另外： sb face sth= sb be faced with sth
所以此处如果D选项是 Faced wih 的话就对了。
let sb do sth ，让某人做某事，所以marry就可以了，不要加to
3.选择D
one指代前面的an exciting moment.
希望能帮到你，祝学习进步^_
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