Don’t worry. Intelligent students can always ­­­­­­­­­_______ good solutions to problems.

_ I use your eraser, Rose?— Sure. Here you are.

Tony knows China very well because he ______ in China for twenty years.

I’ll miss you，dear.—It ________ long before we meet again，Mom. It’s only one month away from Christmas.

He stays at home ______ weekends.[ ]