—Let’s go to the concert this evening.It’s said to be excellent.—I’d like to,but I have something to do.—_________!It is the last time.We’ll have no chance to enjoy it.
A quarrel _________, which made him ______ his family.
Our class _______ of thirty-two boys and twenty-three girls.
Now a lot of new technologies can ______ problems in industry.
When I returned home ,I found the window _____and something____.
Come and see me whenever ____ .