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Lady Gaga has put off her concerts because of the difficulties      by the ongoing strikes.

He pretended to be English, but his foreign accent ________.

--- Will you go to her birthday party?
--- Of course I will if ______.

Although the educational systems have been       a lot, the loads of the students are still very heavy.

As a teacher rich in experience, he knows how to        his ideas to these new students in a limited period of time.

One of my classmates accidentally       he had cheated in the last examination, or he wouldn’t have got so high a mark.

Recent studies have shown that most US graduates receive cash as gifts, though the amount received ______ from person to person．

—You should take exercise in your spare time.
—I want to, but the little time I have outside of school is     with part-time job.

--- Have you ___________ him to give up the job?
---Yes, I have. But he doesn’t listen to me.

On seeing the movie star appeared on the stage, the audience ________ cheering.