Chọn đáp án đúng

 it rained heavily, they went camping. *
1 điểm
A. Because
B. Although
C. As
D. If
2. Tim passed the examination ____________ being very busy with his work. *
1 điểm
A. because of
B. since
C. though
D. in spite of
3. All the buildings ______________ by solar energy in 2030. *
1 điểm
A. heat
B. will heat
C. was heated
D. will be heated
4. _________ all the pollution goes on, the world will end up like a second-hand junk-yard. *
1 điểm
A. If
B. Unless
C. Despite
D. In spite of
5. Lighiting accounts _________ 10 percent of the electricity bill every month at my house. *
1 điểm
A. for
B. in
C. on
D. at
6. ___________the river is polluted, the water is not fit to drink. *
1 điểm
A. Since
B. Because of
C. Though
D. Even though
7. My mother had a plumber _____________ the pipes of my house. *
1 điểm
A. checked
B. to check
C. checking
D. check
8. Mr Smith, ___________ taught us English last year, was my neighbor. *
1 điểm
A. what
B. who
C. that
D. whom
9. Is that the car ___________ was advertised on TV last night ? *
1 điểm
A. who
B. whom
C. which
D. where
10. “I suggest fixing the dripping faucet.”-“________________________________” *
1 điểm
A. Good idea
B. You're welcome
C. It's my pleasure
D. Yes, let's not.