Learning English isn't so difficult once you_______.

On_______he had won, he jumped for joy.

George wouldn't have met Mary _______ to his brother's graduation party.

It is recommended that he_______this course.

If you had taken my advice, you _______ in such difficulties now.

Mark the letter A, B, C, or D on your answer sheet to show the underlinedpart that needs correction.

Lake Superior, that lies on the US Canadian border, is the largest lake in North America.

_______is the natural environment in which plants or animals live.

Mark the letter A, B, C, or D on your answer sheet to show the underlinedpart that needs correction.

The harder he tried, the worst he danced before the large audience.