If the operation ________ carefully prepared, it would not have been successful.
A、wasnotC
语法题：虚拟语气。
Themeeting_____nextweekwillbeofgreatimportance.
Decisiononwhetherthemessageisrightorwrongshouldatleastcomeafter_____whatthemessageis.
Itisdifficultto________theimplicationbetweenthelines.
Thebookfairhasreceivedapositive________fromreaders.
Whenyou're_____acrisis,itoftenhelpstotalktosomeone.
