Ⅰ、Choose the best answer.(选择最恰当的答案，用A、B、C或D表示填入括号内) （共20分）
( ) 1. It's time for lunch. Boys and girls, let's stop _________.
A. to work B. to working C. working D. work
( ) 2. Please give me a ________ when you get to Hai Kou.
All right．I'll tell you everything when I get there．
A．newspaper B．ticket C．calling D．ring
( ) 3. ________ do you usually go to work, Frank?
By bike.
A. What B. How C. When D. Where
