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I. CHOOSE THE WORD IN EACH GROUP THAT HAS THE UNDE...
I. CHOOSE THE WORD IN EACH GROUP THAT HAS THE UNDERLINED PART PRONOUNC...
TRAC NGHIEM LOP 9 10 UNITS
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10. What is responsible for the ... problems in your city ? (environment)
V. Complete these sentences, using IF with the suggesred words in the parentheses :
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10.
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TRAC NGHIEM LOP 9 10 UNITS