Darkness before the traveler could find shelter for the night.
| A．set in | B．set down | C．set against | D．set forth |
According to statistics, Chinese people between the ages of 18 and 70 read 6.7 books___ last year, including paper books and e-books.
| A．on purpose | B．in return |
| C．on average | D．in common |
nation uses nuclear weapons will engage the whole world in war.
| A．Whatever | B．Whichever |
| C．No matter what | D．No matter which |
I have trouble understanding English humour. More often than not, I can’t figure out that makes them laugh.
| A．what it is | B．why it is |
| C．what is it | D．why that makes |
He felt very sad that though he worked very indeed, he was not able to jump .
| A．hardly; high | B．hard; high |
| C．hardly; highly | D．hard; highly |
—Let me help you cross the street.
— ! I’m not that old.
| A．Take your time | B．No way |
| C．Come on | D．Go ahead |