I feel very tired. , I can hold on.

It’s really a small world！I________we would meet here

learn to accept change andappreciate what is new and different, we will be well-prepared for whatever thefuture may have _______.

Nowadays, ______ number of people doing fitness training is on _______ increase.

I’m sure our surroundings will become better. — It is still a problem _____ we can control the pollution. [ ]