______ is important for us ______ learn computer.
There are many new words,you’d better in a dictionary.
Could you please tell me an e-mail,please?
I found difficult to understand what the teacher said in English class.
He asked her______.A. how old is sheB. how old she isC. how old she was
Paul’s uncle is the man taught us Chinese last year. A. where B. which C. who