18

A. Sahara is the world's bigger desert.

B. Sahara is the world's biggest desert.

C. Sahara is the world's biggest dessert.

D. Sahara the world's biggest desert.

19

A. Your car is very beautiful but it's expensively.

B. Your car is very beautifully but it's expensive.

C. Your car is very beautiful but it's expensive.

D. Your car very beautiful but it's expensive.

20

A. Mount Everest is higher than any mountains in the world.

B. Mount Everest is higher then any mountains in the world.

C. Mount Everest is highest than any mountains in the world.

D. Mount Everest is higher than any mountains of the world.

6

A. at

B. in

C. by

D. on

7

A. on

B. at

C. to

D. in

8

A. on

B. in

C. at

D. by

9

A. at

B. in

C. to

D. on

10

A. in

B. by

C. at

D. on

11

A. larger

B. tallest

C. largest

D. large

12

A. gloves

B. walking boots

C. hat

D. scissors

13

A. hot

B. hotter

C. the hottest

D. hottest

14

A. small

B. largest

C. big

D. beautiful

15

A. sleepy bag

B. bag sleeping

C. sleeping bag

D. bag sleep