Music should be taught routinely in schools because of the benefits ______ can have on the development of the brains of young children.
| A．which | B．that | C．it | D．one |
- I probably shouldn't have any more cake.
-Oh,. It won't kill you.
| A． | go ahead | B． | hold on, please |
| C． | you're welcome | D． | that'll do |
By the time Jack r
eturned home from England, his son. from college.
| A．graduated | B．has graduated |
| C．had been | D．had graduated |
a strange plant! I've never seen it before.
| A．Which | B．What | C．How | D．Whether |
When the news came the war broke out, he decided, to serve in the army.
| A．since | B．which | C．that | D．because |
Bring the flowers into a warm roomthey'll soon open.
| A． | or | B． | and | C． | but | D． | for |