---_____you _____ out the problem, Sam?
--- Not yet, but I’m going to.
A．Did, work B．Are, working C．Have, worked D．Will , work
--- Some of the plastic bags can’t ______ after June1.
--- Yes, people will use environmental bags instead.
A．use B．be use C．be used D．are used
--- All the clerks went home _____ Mr. Wang. Why?
--- Because he had to finish his work.
A．except B．besides C．without D．beside
--- Can you_____ your little brother? I’m busy now.
--- OK. I’ll do it right now.
A．wear B．put on C．dress D．in
--- You always spend only a little time on your study. You really _____ me down.
--- I’m sorry, Mum. I won’t do that again.
A．take B．put C．let D．look
---There are many volunteers ______ are helping the children in Sichuan.
--- And most of them are college students.
A．which B．when C．whose D．who
