—I am afraid no one will agree with you.    —I don’t think it ______ .

Shelly had prepared carefully for her biology examination so that she could be sure of passing it at her first ________.

By all _______, you must try every _______ to help him.

At the meeting they discussed three different  ______to the study of mathematics.

—Henry has been teaching English in Beijing university for many years.—It’s no __________ he can speak Chinese so well and idiomatically.