单项选择题
A.disappearing B.disappeared C.diving D.dived
Pipes made of plastic are now widely used in building ...
单项选择题Pipes made of plastic are now widely used in building as they are light and do not become （）in water.
A.ripe B.instant C.rotten D.mature
They were under the（）that the company was doing well, ...
单项选择题They were under the（）that the company was doing well, but in fact it was in serious trouble.
A.conclusion B.expression C.enjoyment D.illusion
This lovely old town has a（）you couldn't find in a big ...
单项选择题This lovely old town has a（）you couldn't find in a big city.
A.condition B.standard C.situation D.charm
