We must find out the professor is coming, so we can book a room for him.( )
A.howB.whyC.whenD.where
Cindy's grandmother is learning ____ the new mobile phone.( )
A.useB.usesC.usedD.to use
In many eastern European countries,you are supposed to ______ your gloves before shaking hands.( )
A.take offB.shut offC.cut offD.put off
They have collected more than 14,000 books since the library_____ last month.( )
A.builtB.was builtC.buildsD.is built
When President Xi Jinping has spare time,he enjoys_______and sports.( )
A.readB.readsC.to readD.reading
Doctors in the town are using the books______their studies and treat patients.( )
A.continueB.to continue
C.continuingD.continues