Allthebooksthathavebeencontributedbytheneighborhoodareknowntothecitypubliclibrarytheotherday.A.beingsentB.tobesentC.havingbeensentD.tohavebeensent

Question

All the books that have been contributed by the neighborhood are known _______ to the city public library the other day.
A.being sent
B.to be sent
C.having been sent
D.to have been sent

Answer 1

答案D
第一要表示被动；第二要表示send的动作发生在are known之前；第三,are known/said/reported/believed/supposed之后使用不定式形式.句意为“社区里捐赠的书籍,已在几天前送到市公共图书馆里去了”.