I don’t dare ______ in front of the class.

_________ I finish my homework now,mum–No,you _______.But you must finish it before seven o’clock.

What are you going to do this weekend—I’m not sure. I_____________ go to visit my friend.

It is high time for us to take measures to protect these old traditions and customs before they ___.

23. Each member country of WTO must ______ its laws and regulations and compete on the principle of fairness and co-operation.