Not until the man i，n black took off his dark glassesthat he was the famous film star.

The fat boy always worries about _______ enough food _______ every day. How funny!

How do you findthe dictionary ——-It’s useful,_________for beginners of English.

This pair of jeans ________ them 300dollars.

More and more people come to realize that only by_______ high technology can we increase economic power.