1.we must do something to ______the roof falling in.
A.prevent B.protect C.defend D.keep
解釋說(shuō)keep .from doing sth.的from不能省略.換言之prevent .from doing sth.的from可以省略了,那stop .from doing sth.和protect .from sth.的from可以省略嗎?
2.you didn’t reach the required level,______,you faild in the diving test.
A.in another word B.that is to say in other words C that is
選C 請(qǐng)問(wèn)有沒(méi)有A項(xiàng)的表達(dá)?那改成in other words 是不是對(duì)的?
幫我說(shuō)說(shuō)第一問(wèn)中哪些詞組的from是可以省的