She heated the chocolate until it ______ , then poured it over the cake.

John isn't content with his present salary. (Chọn từ đồng nghĩa)

“I like watching comedy.” The word “comedy” means:

 Many of the earliest _____ into the United States established large plantations.

One of the tigers has got ______ . Warn everyone of the danger!

 The deep pool was so brown and weed-covered that it was almost ______.

The presently accepted theory of light _______ some of the ideas of both earlier theories.

_______ is the study of the Earth's physical features and the people, plants, and animals that live in different regions of the world.

He stroked his cat’s silky fur and the cat ______ contentedly.

She began to feel nervous when the train pulled up at the _____ between Austria and Yugoslavia.

He knows so much about the stars that I am sure it would be impossible to find his ______.

The specialist was under so much stress that he finally ________.

 If I take this medicine twice a day, it should ______ my cold. 

When I came through the customs at the airport, I had to pay ____ on a clock I had bought.

We read newspapers and magazines which have been produced on computers.

There is something wrong with his vocal chords and as a result, he had always been ______.

Can you tell me who is responsible ______ checking passports?

_________ is a building in which movies are shown.

______ of money prevented us from taking a holiday this year.

When he makes a _____ by car, he takes his family with him.

Yesterday, we had a discussion _____ different cultures.