. “Haven’t seen you for ages！ Do you still work in Guangzhou？” “_______. It’s two years since I worked there.”

It’s important_____ a foreign language. —-I agree with you. We should study hard.

Would you like to go and see avatar with me tonight?—Thank you very much, but I ___ it already.

The black hat is sale. You can buy one only two dollars.[ ]

Martin Evans, a Nobel Prize winner for medicine thinks that we should never give up our dream — even when ________ think we are dreaming the wrong ones!