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”。
The（） in Janet‘s character has hindered her froom advancement in her career.
Toobtainasatisfactoryresult，onemustapplytwo（）ofpaintonacleansurface.
Ifnot_____withtherespecthefeelsduetohim,Jackgetsveryill-temperedandgrumblesallthetime.
Theteachers’union_________alawsuitagainstthedistrictcallingforrepairing“deplorable”schoolconditions.