You are going to the USA_____________ next week, aren’t you—_______________, I went there three years ago.

The number of the people invited to the meeting ____ about 100, but a number of them ____ late because of the heavy snow.

Throughout the world__________advance has been made in science and technology is due to education which brings forth knowledge, creation and inventions.

Excuse me，but is that my dictionary—Oh, sorry, I took________ by mistake.

We couldn’t catch up with the others because they________too long before us.[ ]