30. Having introduced the advanced scientific methods, the factory turned out ______ in 2006 as a year before.
| A．as many as four times machines | B．four times machines as many |
| C．four times as many machines as | D．four times as many machines |
Father _____ goes to the gym with us although he dislikes going there.
| A．hardly | B．seldom | C．sometimes | D．never |
– I’m very tired.
– We really should stop _____.
| A．to walk | B．walk | C．walking | D．walked |
WHO is short _____ the World Health Organization.
| A．of | B．for | C．to | D．with |
I soon found that the work I was doing had already been done, _____, I was wasting my time.
| A．in a word | B．in other words | C．so that | D．above all |
She had stomach trouble and had to follow _____.
| A．strict food | B．a strict food | C．strict diet | D．a strict diet |