Only after he realized the significance of mastering two languages ______ English carefully.

ore and more important to protectour earth—-I think so If everyone ______acontribution to it, our world will be more beautifu

As our coach often puts _______, everything is possible if we keep on.

I haven’t got a letter from Jenny for a long time .— Don’t worry . .

a trip after the exam, OK—______ I love getting close to nature to relax