In the Grand Canyon, each rock layer can __________ a chapter in a book.
| A．regard as | B．think of as |
| C．be thought as | D．be regarded as |
The milk terrible bad.
| A．smells ; must go |
| B．is smelt ; must have gone |
| C．smelling ; must have gone |
| D．smelt ; might have gone |
that many south-east Asian countries suffered a lot.
| A．So strong the Super Typhoon Haiyan became |
| B．So the Super Typhoon Haiyan became strong |
| C．Strong became so the Super Typhoon Haiyan |
| D．So strong did the Super Typhoon Haiyan become |
As there is less coal and oil, scientists are exploring new ways of making use of _____ energy, such as sunlight, wind, and water for power and fuel.
| A．primary | B．alternative | C．instant | D．unique |
— Look! Someonethe laptop.
— Well, it wasn’t me. I didn’t do it.
| A．has repaired | B．is repairing | C．had repaired | D．was repairing |
—Mum，can I go on a holiday with my classmates this summer vacation?
—OK．Youhave a chance if you get along well with your studies．
| A．could | B．shall | C．might | D．must |