No way! I don't think should be allowed to drive. I am worried about your safety. A. fifteen years old B. fifteen-year-olds C. fifteen-years-old
---Linda, is there anything else you want to know about China? ---Yes, I am still wondering _____________.
When you talk to people, you’d better ________ to show that you’re friendly to them.
After working _____ with each other for months, they felt so _____ to each other that they began to share lunch together.
We are planning to go to Hainan for the coming winter holiday and we’ll stay there for ______ with my grandparents.
It is ______ an interesting book ______ I want to read it once more.