To save energy, we should ________ the electricity when we don't use it.
A.go off B.shut off C.give off D.drop off
As soon as the rain stops, we will ________ for the train station and begin our journey.
A.put off B.fall off C.set off D.keep off
The more you ________ the group activities, the more outgoing you will be.
A.check in B.join in C.bring in D.drop in
Before you ________ your test paper, you'd better check it carefully to avoid some mistakes.
A.hand in B.put in C.fill in D.come in
________ yourself. You are sure to win the speech competition.
A.Let in B.Drop in C.Believe in D.Major in
Noboby can know what tomorrow will be like, so don't ________ it. Make full use of today.
A.bring about B.talk about C.walk about D.worry about
