He paid for a seat, when he _____ have entered free.
A. could B would C. must D. need
The most obvious reason why computer-based testing is becoming increasingly popular is that it makes tests easier ______.
| A．take | B．taking | C．to take | D．taken |
—Did you have a good time in the US during the Golden Week Holiday?
— ______ Due to the temporary government shutdown, a lot of national parks were closed.
| A．Not really. | B．You’re right. | C．Oh, great! | D．Yeah, why not? |
--I’m thinking of the test tomorrow. I’m afraid I can’t pass this time.
--_________! I’m sure you’ll make it.
| A．Go ahead | B．Good luck | C．No problem | D．Cheer up |
The question______new measures should be taken to control the terrible air pollution is______puzzles scientists a lot.
| A．that; what | B．which; that | C．what; what | D．which; that |
The house rent is expensive. I’ve got about half the space I had at home but I have to pay_______here.
| A．as three times much | B．as much three times |
| C．much as three times | D．three times as much |