从方框中选择合适的词组并用其正确形式填入下面的句子中，使句子的意思完整。

More and more people are suffering from Aids, so scientists and doctors will have to ________ methods of curing this disease as well as preventing this disease from spreading.

从方框中选择合适的词组并用其正确形式填入下面的句子中，使句子的意思完整。

Although few people understood his theory, Einstein ________ his opinion and went on with his research.

用所给词的适当形式填空

Freddy went to London and gave a ________ (perform) to a TV camera.

用所给词的适当形式填空

Liu Dehua is my favourite ________ (act).

用所给词的适当形式填空

John is very strong and ________ (ability) to move the heavy box by himself.

用所给词的适当形式填空

The scenery（景色）of Zhangjiajie is so ________ (attract) that many tourists go there every year.

用所给词的适当形式填空

--Which do you like best, ________ (class) music, folk music or pop music.

--Pop music.

介词、副词填空

-- Can I listen ________ the tape ________ pop music here?

-- You'd better not.

介词、副词填空

Please sit here ________ a while. The meal is being prepared ________ the moment.

介词、副词填空

Peter said that he is really grateful ________ you ________ the help you offered the other day.