opinion,_____ shouldn’t be any doubtthat China will become one of the most powerful countries in the near future

What’s your best friend like —He_______________.

st cbut study hard, keep calm and do your best.

Uber (优步) is the easiest way to connect you with a driver_________ the tap of a button. In terms of price and convenience, it is second _________ none.

You must work harder, ____________ you will fall behind others.