Câu 1. Most of the undeveloped countries need a lot of .......................aid.
A. together
B. unselfish
C. mutual
D. friend
Câu 2. By the time we got to the theater, the movie ___________, so we missed the first five minutes.
A. started
B. were starting
C. had started
D. starts
Câu 3. A solar water heater is one type of solar _______________
A. Collect
B. collectors
C. collection
D. collected
Câu 4. Could everybody.........luggage has got lost please stay here?
A. whose
B. who
C. which
D. that
Câu 5. The house ......I lived as a child has been pulled down now.
A. who
B. which
C. where
D. whose
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