—Will you give me a hand? I have some trouble_______ the scientific problem.—Don't worry. I'll try my best to help you _______.
Let Jim __________ the classroom for us, he is helpful.
----- Who is nice woman with glasses? ------She is English teacher in our school.
Daniel with his family ________ on Sunshine Road, Beijing.
Sally is ________ American girl. She plays __________ violin very well.
The new books are for _____________________ .