It _______ ten years since my sister ______ an English teacher.

a real race _______ time to get the projectdone Luckily, we made it

I can’t find Mr. Smith. Where did you meet him this morning?—It was in the hall ____ our products were showed..

The course about Chinese food attracts over 100 students per year, ________ up to half are from overseas.

Do you have a pen—Yes, I do.