A. CLEANERS B. EFFECTS C. MACHINES D. INVENTIONSII. VOCABULARY AND...

5. - 20 DE TRAC NGHIEM TIENG ANH LOP 10 BAN CO BAN
20 DE TRAC NGHIEM TIENG ANH LOP 10 BAN CO BAN
5. a. cleaners b. effects c. machines d. inventionsII. VOCABULARY AND EXPRESSION : Choose the most suitable word or phrase.