________ is shown in the report, teenager problems are often connected with family life education.
| A．Which | B．As |
| C．It | D．What |
The palace caught fires three times in the last century,and little of the original building now.
| A．remains | B．is remained | C．is remaining | D．has been remained |
In China ,the number of cities increasingdevelopment is recognized across the world.
| A．where | B．which | C．whose | D．that |
Everything comes with price;there is no such thing as free lunch in the world.
| A．a,a | B．the, / | C．the, / | D．a, / |
—Honey,let’s go out for dinner.
— I don’t have to cook.
| A．Forget it! | B．That’s great! | C．Why? | D．Go ahead. |
To improve the quality of our products ,we asks for suggestions had used the products.
| A．whoever | B．who | C．whichever | D．which |