you’d better ________ his telephone number , his name and address in your notebook before you forget them.

clear Security Summit is an initiative of Mr. Obama, considers nuclear terrorism to be one of the greatest threats to international security.

You are so _______to have brought your laptop. You see, mine is broken.

Hi, let’s go skating.— Sorry, I’m busy right now. I_____ in an application form for a new job.

－ Do you want another drink－ __________