Jeff has two pen pals.One is from Australia and ________ is from Canada.
A. others B. another C. the others D. the other
I wonder ________ Jane will sing an English song at the party.
A. if B. that C. which D. where
Peter, please give my best wishes ______ your family.
A. for B. at C. to D. from
If we don’t use money ______, we’ll have a difficult time.
A. happily B. easily C. loudly D. wisely
—Cindy,you learn physics so well.What's your ________?
—Doing a lot of exercises.
A. secret B. Knowledge C. idea D. ability
Alan,you can't go out to play ________ you clean your room.
A. if B. because C. since D. unless