These instructions should be made more ___________ , so that the primary school students can understand it.
| A．easy | B．modern | C．simplified | D．complicated |
．_____ the chapter four times, I finally understood the author's theory．
| A．Reading | B．Having read | C．To read | D．Read |
Ann ______ here any more．She left last month．
| A．won't work | B．doesn't work | C．hasn't worked | D．isn't working |
The conference aims to develop business and let people think about _____ they can have a
positive influence on the planet．
| A．why | B．that | C．what | D．how |
—Can I ask you a few straightforward questions about yourself？
—No problem．I like ______ when people are open and direct．
| A．that | B．this | C．it | D．them |
They went on well at first but eventually everything ______ they had worried about happened．
| A．which | B．what | C．that | D．When |