At first, we didn't know about Tom. But ____, we came to know that he was an honest boy.

—You don't seem to be quite yourself today. What's wrong?—Oh, I'm suffering from a cold. Nothing serious,______

Don’t talk round the question; come             to the point.

I can’t say I’m the best. I have only _________ made more efforts than others.

As the idea of low-carbon life is now _____ accepted, more and more people travel by public transport.