Great changes _____ in my hometown in the last 30 years and local people are living a happy life today.
| A．took place | B．were taken place |
| C．have taken place | D．have been taken place |
I lived with my sister this summer and didn’t have to pay rent. So I _____ save most of my salary.
| A．could | B．would | C．was able to | D．should |
He _____ if he works hard for the people.
| A．shall praise | B．shall be praised | C．will praise | D．will be praised |
—_____ he start at once or wait for a while?—Let him start at once.
| A．Will | B．Would | C．Does | D．Shall |
A left-luggage office is a place where bags ______ be left for a short time, especially at a railway station.
| A．should | B．can | C．must | D．will |
—Guess what! I have got A for my term paper.—Great! You ______ read widely and put a lot of work into it.
| A．must | B．should | C．must have | D．should have |