Of the three girls, Mary sang             

―      do you play football? ―Once a week.

I enjoyed the trip to Dalian Forest Zoo so much. I didn’t ___ want to go home.

Now more and more children leave their parents when they grow up. It makes the old feel         .

--- ___________ is it from Suzhou to Beijing?--- It used to be a long way, but nowadays, it takes only five hours to get there by high-speed rail.