1 . He spends two weeks with each client, d________ (to show or prove sth. clearly) the features and functions of the software. (根据英文提示单词拼写)

2 . The additional weight puts a strain on the ducks’ muscles, ______ their wings to twist and drop open, and if ______ fast, they can lose the ability to fly.

A．causes; treated	B．causing; treated
C．causing; isn’t treated	D．causing; not treated

3 . ______ of what happened in advance, she stood in the meeting room, confused and awkward.

A．Not having been informed	B．Not being informed
C．Having not been informed	D．Have been not informed

4 . 考试成功后，他变得更加自信了。(v-ing作状语)
______________________, he became ______________________.

5 . He returned home, unexpectedly, _________ the concrete wall in the backyard torn _________ and replaced with a wooden fence.

A．to find; down	B．finding; apart
C．to find; apart	D．finding; down

6 . ________ the living condition in China at that time, they had no choice but ________ a living abroad.

A．To consider; earn	B．Considering; earn
C．To consider; to earn	D．Considering; to earn

7 .          hard, and you will finish this task,             a sense of success.

A．Working, experiencing	B．Working, experienced
C．Work, experiencing	D．Work, experience

8 . 中国500强公司总营业收入达到45.5万亿人民币，占中国GDP的一半以上。
The top 500 Chinese companies saw their revenue reach 45.5 trillion yuan,________ ________more than a half of China’s GDP.

9 . 当面临危险和冲突时，男性往往会血压升高，感到紧张或焦虑。(状从的省略，分词作状语)
________, men tend to increase blood pressure, ________.

10 . He said it angrily, ________ at the notice on the wall.

A．to point

B．pointed

C．point

D．pointing