Question

【题目】A lot of things ________ by people to save the little girl now.
A.are doing
B.are being done
C.has been done
D.will be done

Answer 1

【答案】B
【解析】句意：现在人们正在做很多事来救那个小女孩。 now是现在进行时的标志；things与do之间构成被动关系，故用现在进行时的被动语态：is/are being done，故答案选B。如果理解为现在完成时，则C项的谓语应该是have been done，而不是has been done，因为主语things是复数形式。