— I don’t know next.
— Let’s ask our teacher for help.
A. what to do B. what should I do
C. how to do D. how I should do
She said _______a low voice,“Go back to your seat.”(in / with/ by)
He dug a hole in the wall ______his hare hands(空手)(in, with, by)
I have nothing ____to do. (other,else)
What's that in your ____hand?(other,else)
Who _______Australia?( discover，invent, create)
