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”。
Thecompositionscontainedsofewerrorsthattheteachergotthestudents_____oneanother’spapers.
Heleftordersthatnothing_____toucheduntilthepolicearrivedthere.
_____forthefactthatshebrokeherleg,shemighthavepassedtheexam.
U.S.News____________rankingsofcollegessince1983.Theyareaverypopularresourceforstudentslookingtoapplytouniversitycampus.
_____theirhelp,wewouldnothavesucceeded.