bổ trợ unit 4 - lớp 10

Last Sunday, our volunteer team ____ a lot of food packages to homeless people in the flood-hit region.  (A.were bringing ---------B.brought  --------  C.have brought  ---------- D.had brought)

I ____ Maria for the first time at the Heart-to-Heart Charity Office. (A.saw ----------- B.was seeing ----------C.was seen-----------D.has seen)

We ____ the roof for Mrs. Smith, an elderly childless woman, when it ____ with rain. (A. were mending - was pouring   ----B. mended - poured------C. mended - was pouring --------D. were mending - poured)

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