【2015·天津】Jane can’t attend the meeting at 3 o’clock this afternoon because she ______ a class at that time.
It was in the United States that I made the _________ of Professor Jones.
Many experts stick to the view _____ teacher development is _____ the key to quality education lies.
I have to go to school by bus because my bicycle _____.
The course books are _____ by four tapes, which are beneficial to beginners.
— I’m afraid what I did cannot satisfy your requirements. — _____. At least you tried.