You’d better not call your friends ___________ night.
A.on
B.to
C.in
D.at

After the accident, he has to wear ___________ teeth.
A.untrue
B.unreal
C.FALSE
D.artificial

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Speech sounds are produced as a continuous sound signal rather than discreet units.
A.Speech
B.discreet
C.are producted
D.signal

Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
A food additive is any chemical that food manufactures intentional add to their products.
A.intentional
B.additive
C.any chemical
D.products

He has just bought a ___________ .
A.sleeping blue polyester bag
B.blue sleeping polyester bag
C.polyester sleeping blue bag
D.blue polyester sleeping bag

Jenny is Korean, so she cooks ___________ Korean food.
A.authentic
B.original
C.artificial
D.imitation

II. Circle the correct answer, A, B, C or D.
The Grand Canyon is one of the natural ______ of the world.
A.materials
B.sights
C.scenery
D.wonders

II. Circle the correct answer, A, B, C or D.
The Sahara is the third largest ______ in the world.
A.island
B.desert
C.valley
D.mountain

II. Circle the correct answer, A, B, C or D.
“Do you finish packing?” – “Yes. All my things are in my ______.”
A.backpack
B.ruler
C.compass
D.sun hat

II. Circle the correct answer, A, B, C or D.
I walked too much. I need to put a ______ on my foot.
A.gloves
B.hat
C.tent
D.walking boots