1.The things ____ are not very expensive.
A.are on show B.which on display C.are on display D.that are on show
2.Dinosaurs _____,can you explain their _______?（消失）
3.(1)The old underground building ______ last year.
(2)When was the PLA _____?
(3)Have you ____ your lost ticket?
(4)The new bridge will ______ next year.
A.was found B.was founded C.be founded D.found E.founded
4.(1)Is this the exit _____ that building?
(2)This entrance is also used ______ an exit.
A.to B.for C.as D.by
5.(1)These eggs were _____ by that hen.(下）
(2)The hen ______ on the ground and _____ an egg just now.(躺在地上下了一个蛋）
6.He was born in the ________(十九世纪七十年代）
参考答案：
1.D 2.disappeared,disappearance 3.A E D C 4.A C 5.(1)laid(2)lay,laid 6.1970s/1970 s