24. With online course Crazy English has over 20 million students all over China _____the class through the Internet.
He__________ he would be able to leave tomorrow, but it's beginning to took difficult.
—I put him down for a well-educated man.—___________ ?—I mean that he's a well-educated man.
Jack is one of those men who_________ best evening the most difficult situations.
--Whose advice do you think I should take?--___________.
__________ you understand the rule, you will have no further difficulty.