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1/ her mother was__a business trip to Japan for a whole week
a. at                  b. in              c. on                 d. by
2/ she usually__carefully but yesterday she__carelessly
a. writes/writes          b. writes/wrote          c. wrote/write          d. is writing/wrote
3/ How old__you when you__read?
a. was/could           b. were/could           c. are/could            d.were/can