They ______Hong Kong twice.　　

Is itapple?—Yes, it isn’t.

Do you know the man wearing a pair of glasses?——-Yes.He’s a teacher of _________.He teaches _________history.

China’s first lady ____________the home-made clothes to visit Russia in March,2013.

Mr Philip has made ______ survey on students’ lunchtime, and ______ survey shows us a lot of problems.