Jawaban:

A. Fill in the blanks with there is or there are

1. There are four weeks in a month
2. There is a mailbox downstairs
3. There is an English book in my backpack
4. There are teachers in the classroom
5. There is one bedroom upstairs
6. There are clouds in the sky
7. There are some mistakes in your calculations
8. There are two lectures before the final

B. Chanfe from one form to another as in the following examples

9. Isn't there a couch near the outlet? (–)

(–) There isn't a couch near the outlet

10. There aren't knives on the table (+)

(+) There are knives on the table

11. There is a tray on the floor (?)

(?) Is there a tray on the floor?

12. There is a kite in the sky (–)

(–) There isn't a kite in the sky

13. Are there workers in the office? (+)

(+) There are workers in the office

14. There isn't a sink near to tub (-?)

(-?) Isn't there a sink near to tub?

15. There are eggs in the basket (-?)

(-?) Aren't there eggs in the basket?