When you’re learning English, use it, _________ you’ll forget it.
I like, but I don’t wantnow. A、reading; reading B、reading; to read C、to read; reading.
I’m so tired that I can ____ run. A、always B、hardly C、sometimes
—_____do you go shopping? —Six times a month. A、How much B、How long C、How often
What happened _____ them?
Five million, five hundred and fifteen thousand ,one hundred and fifty-one is _____.