_______ that the scientist will give us a talk next month?
A、IstrueB
it在句中作形式主語，that引導(dǎo)的從句是真正的主語。本句運(yùn)用的是疑問句式。
ASalesConfirmationshouldbecounter______signedby______.
______alittleearlier,Iwouldhavecaughtthetrain.
Imaginehowmanytimesrestaurantsandmerchantshadtochangetheirpostedpricesduringthe_____1970s,whenpricesalmostdoubled.
If you _______ in behaving in this way you will bring yourself nothing but trouble.
Hermindhadbeen__________intosuchaconditionasshecouldnotverylikelyhaveimaginedpossibleafewmonthssince.
