---________shall we deal with the waste paper. bottles and boxes?---Let’s keep them for recycling. It’s good for the environment.
When we practice_____English,we often end up___in Chinese.
_____ the help of the teacher,he became a good student.
-_____do you tell your mother about your English result? -By using my mobile phone.
Father is ill. He wants his doctor to give him ______ about his heart trouble.
Is your bike broken? Let__________you.