1.I______gardening, but I don't have time for it now

A.use to enjoy     B.use to enjoying    C.uesd to ẹnoy    D.used to enjoying

8.Spending one hour doing the English grammar exercise every day is good for you.

It's

Trans:

1.It's your duty to clean the blackboard.

You have _____________________________________________.

2.Mary always goes to school alone.

Mary always goes to school by ____________________________.

3.Leaving the medicine around the house is not safe.

It's ___________________________________________________.

4.Putting a knife into an electrical socket is dangerous.

It's ___________________________________________________.

5.You are not allowed to make noise here.

You musn't ____________________________________________.

6. It's better for you to review what you have learned.

You shuold ____________________________________________.

7.It wold be a good idea if Hary took a holiday.

Hary should _________________________________.