主谓一致
16、Laying eggs the ant queen’s full-time job.
A.is B.are C.has D.have
17、Between the two buildings a monument.
A.stand B.stands C.standing D.is standing
18、I, who your good friend, will share your joys and sorrow.
A.am B.is C.are D.was
19、The United Nations in 1945.
A.were found B.were founded C.was founded D.was found
20、 were also invited to the party.
A.Mr Smith B.The Smith C.The Smiths D.Smiths
16、A ，动名词作主语。
17、B 倒装，见讲解3。 18、A 。 19、C
20、C 因谓语动词是复数，所主语应是复，The Smiths是指史密斯一家人。
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