He _____China since he _____ to China.A learned , came B has learned , comesC have learned , came D has learned ,came
一is Tom’s mother? 一The one in red.
Her father and mother ______ drinking black tea.
There isn’t _______________with your computer.
We should use _______ people and ______ money to do the work better.
Who listens ________, Tom, Jack, or Bill?