I don’t know when he______ tomorrow. I think if he_______, I’ll go to see him.
How time flies! ________ almost ten years since my friend left China to work in the USA.A. It’s B. It was C. That’s D. That was
Excuse me, I left my knife at home. Would you please_______ me yours?
The man got _______ information about his hometown on TV. It has changed _______.
— When did Mr Green teach in China?— _______.
There will be _______ space for wildlife if we do _______ to protect the environment.