Câu hỏi: Are you satisfied the result of the final test?
A. to
B. of
C. about
D. with
Câu 1: We must take steps to preserve natural resources; otherwise the planet will be in danger.
A. Unless we take steps to preserve natural resources, the planet will be in danger.
B. Unless we take steps to preserve natural resources,the planet will not be in danger.
C. If we take steps to preserve natural resources, the planet would be in danger.
D. If we take steps to preserve natural resources,the planet will be in danger.
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Câu 2: People have discovered a new source of energy.
A. A new source of energy have been discovered by people.
B. A new source of energy has discovered.
C. A new source of energy has been discovered.
D. A new source of energy have been discovered.
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Câu 3: We decided to go out for dinner _________it was raining heavily.
A. because
B. despite
C. even if
D. although
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