Ifasubstanceisdissolvedinwaterorheated，itmay（）agas.
C
「句意」 如果一种物质溶解在水里或被加热，它可能释放出一种气体。
「难点」 give into 为非固定搭配; give over 意为“托付， 交托”;give off 意为 “散发”;give away 意为“送掉，分发(奖品)等”。
There are only ten apples left in the baskets, _____ the spoilt ones.
Ininternationalmatches,prestigeissoimportantthattheonlythingthatmattersistoavoid_____.
The minister of finance is believed _____ of imposing new taxes to raise extra revenue.
John's score on the test is the highest in the class ; he____last night.
The celebrity says in court papers she “has no __________ of giving any authorization to anyone to proceed with a divorce. ”