1. A. traditional C. compulsory B. modern D. convenient.
2. A. about B. with D. for C. after
3. A. was C. are B. were D. is
4. A. for C. after B. forward D. at
5. A. them C. these B. who D. they
6. A. take C. we B. not D. be
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Sinh Học lớp 12
