2. The heating system here has an ______ temperature control.
A. aggressive
B. intentional
C. accidental
D. automatic
3. The gasoline ______ destroyed the company and injured many people.
A. explored
B. extended
C. expanded
D. explosion
4. To complete the task successfully, we have to get well prepared ______.
A. in advance
B. in detail
C. in turn
D. in force
5. Only two people survived the fire that ______ at midnight.
A. broke out
B. broke off
C. broke up
D. broke down
6. It is nice to travel with ______ paid by your boss, at no cost to yourself.
A. prices
B. costs
C. offers
D. activities
7. The policeman went from house to house, ______ whether anyone had seen the lost boy.
A. asking
B. interrupting
C. informing
D. introducing
8. On our trip out of the country we visited ______ in England.
A. relationship
B. relation
C. relatives
D. person
9. Theory couldn't do without practice, _______ without theory.
A. practice could do either
B. neither practice could do
C. practice could do neither
D. nor could practice do
10. I _______ the truth of your remarks, although they go against my interests.
A. cannot but admit
B. cannot but to admit
C. cannot but admitting
D. cannot help but admitting
11. She hardly ever eats _______ potatoes.
A. every bread or
B. bread or
C. neither bread or
D. neither bread nor
12. That's the hotel _______ last year.
A. which we stayed
B. that we stayed
C. for which we stayed
D. where we stayed
13. We often advise him not to drink more wine _______ is good for his health.
A. as
B. that
C. than
D. but
14. "Why does Dr. Takin prefer his office?"
"Because here he is free to do his research _______ he wants."
A. some way
B. anyhow
C. anyway
D. whatever
15. I have never dined with you, sir; and I see no reason _______.
A. how should I now
B. how I should now
C. why should I now
D. why I should now
16. Advertising is different from other forms of communication _______ the advertiser pays for the message to be delivered.
A. in which
B. in this way
C. in that
D. in order that
17. _______ electric wires are made from lead is common practice.
A. What
B. Whether
C. That
D. How
18. Unemployment in some large cities was _______ problem that the government had to provide free grain for many of the poor people.
A. so a serious
B. a such serious
C. a so serious
D. such a serious
9. No matter _______ they added to their knowledge and abilities, the old professor was never satisfied.
A. what many
B. how many
C. what much
D. how much
20. They didn't break the bad news to his mother _______ that she might break down.
A. unless
B. for
C. because
D. for fear