题目内容
_______ several times, but he still doesn’t know how to do it properly.
| A．Being shown | B．Having shown him |
| C．Having been shown | D．I’ve shown him |
D
解析试题分析：句意：我已经给他演示了好几次了，但是他还是不知道如何恰当地做。But 是表示转折的并列连词，其前后都应该是完整的句子。而A. Being shown是现在分词的被动形式; B. Having shown him 是现在分词的完成形式; C. Having been shown是现在分词的完成被动形式，均不符合语法意义。
考点：考查并列句的用法。
全优点练单元计划系列答案When we saw the road with snow, we decided to spend the holiday at home.
| A．block | B．to block | C．blocking | D．blocked |
______ by the clear waters, this forest provides visitors with a wonderful chance to see some endangered birds in the wild.
| A．Being surrounded | B．Surrounding | C．Surrounded | D．To be surrounded |
So far nobody has claimed the money in the library.
| A．discovered | B．to be discovered |
| C．discovering | D．having discovered |
The children all turned ____ the famous actress as she entered the classroom.
| A．looked at | B．to look at | C．to looking at | D．look at |
The doctor did __________ save the patient’s life.
| A．that he could do | B．all what he could |
| C．all he could to | D．which he could |
—“Dear Frank, when will our wedding be?”
—“Ah, when? God knows.” He said, and ____ away from her, walked rapidly away.
| A．turning | B．turned | C．turn | D．to turn |
How did it ____that you missed so good a chance, which was very important for your promotion in the company?
| A．bring about | B．break out |
| C．come about | D．turn out |
If he takes up this job, he will have no choice but ________ a much greater challenge.
| A．meets | B．meeting |
| C．to meet | D．meet |