Ifit______rainheavily,thecitywouldhavegreattroublebecauseofitspoordrainagesystem.
A、should《英語課程標準》采用國際通用的分級方式，將英語課程目標按照____設為九個級別。
Thinkinghelpspeoplecontroltheirowndestinies.Thosewhoavoidthinkingruntheriskof______.
Whenyou"rereadingadocument,underliningmayhelptokeepyourmind______onthematerial.
Previewingisatechniqueofallowingyoureyestotravelrapidly______apage,stoppinghereandtheretoregisterthemainidea.
---What__Amy__?
---She'swritingane-mailtoherpen-friend.
