Remember to ________ a good state of mind even if you should fail plenty of times．

Excuse me, Sir. But smoking is not allowed here.—Sorry, I didn’t see the sign. I’ll _______ mycigarette at once.

ck Ma is ambitious about his firm’s future, ______ that Alibaba’s achievements will one day top Walmart.

_______young people see and hear in themedia helps them to figure out how the world works.

Should a teenager to get a driving licence