My mother often tells me______the teacher in class.
Half of the class ________ done most of the work. The left ________rather hard.
---Mr Wang, I have trouble ________ the text. ---I’m sure you can, but remember ________ it at least three times.
---Look at those shoes, Mike! ---Wow! They look very cool, but I wonder ________.
The scientist’s last words _________us that we should protect the environment around us.
If the question ______ incorrectly, _______ question will be given to you