It never occurred to me you could succeed in persuading him to change his mind.
A.which B.what C.that D.if
The moment John will never forget is Mr. Smith gave him a lot of valuable advice on how to improve his writing.
A.that; that B.that; when C.when; that D.when; when
China first agreed the six-party talks about North Korea nuclear weapons program.
A.to attend B.to join C.to participate in D.to take a part
It is wise of you to well trained workers for untrained ones in your workshop.
A.substitute B.change C.exchange D.employ
Many students listened to the lecture, but I wondered how much they .
A.took out B.took up C.took off D.took in
The customs office is your luggage is inspected when you enter or leave a country.
A.where B.when C.why D.who