There’s some litter on the floor. Please ______.
A．pick up it B．pick it up C．pick them up D．pick up them
---What’s your favorite ______? ---Hamburger.
A．food B．drink C．fruit D．clothing
My friend Max started to play football ______ he was seven years old.
A．since B．when C．if D．while
Could you please ______ loudly in the library?
A．don’t talk B．don’t say C．not to talk D．not talk
Why not ______ help when you were in danger?
A．you ask for B．ask for C．asking for D．to ask for
Would you mind ______ louder? I can’t hear you clearly.
A．speaking B．spoke C．to speak D．speaks
