________ she is not so cheerful ________ she used to be?
| A．How it is that；as | B．How is it that；as |
| C．Is it why；that | D．Why is it that；what |
Humans are polluting the earth day by day, ________, of course, will cause punishment sooner or later.
| A．that | B．it | C．which | D．what |
You’d better cut your hair short. Our school doesn’t _______long hair.
| A．approve of students wore | B．approve students to wear |
| C．approve of students to wear | D．approve of students wearing |
—When can we make an appointment with you , sir ?
—What about Wednesday afternoon ?
—OK．_______
| A．Do you have time then ? | B．It doesn’t suit me． |
| C．That’s settled． | D．It’s so nice to meet you． |
The Internet is regarded as one of the reasons_______ many people aren’t getting enough sleep now．
| A．which | B．what | C．as | D．why |
Little Kate insisted she ______ badly injured and _______ to the hospital at once.
| A．was；would send | B．should be；should be sent |
| C．was；be sent | D．were；should send |