I DON'T KNOW ... THEY SPEAK ENGLISH.A. IFB. YETC. WHATD. NOT YET--...

27. - 3500 CAU TRAC NGHIEM ON TAP AV THCS
3500 CAU TRAC NGHIEM ON TAP AV THCS

27. I don't know ... they speak English.

a. if

b. yet

c. what

d. not yet

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