1.while she ........ On the phone, the children ....... Fighting and broke a window
A.talked/start. B.talking/started
C.talked/started. D.was talking/started
2.After he........breakfast,he......down to write some letters
A.has/sat. B.has had/sits. C.had had/sits. D.had had/sat
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Sinh Học lớp 12
