________ my teacher couldn’t understand was ________ fewer and fewer middle school students showed interest in her lessons.

It looks as if they are going to _________ us a lot of money for the concert hall.

How did you ________ French?-My experience helps a lot，in fact.I had lived in Paris with my aunt for 2 years before I came to England.[ ]

It is said that it may be another two months _____________we can have a new hall.

______ of years later, the first extremely small plants began to appear on the surface of the water.