A. 7,000,000,000 B. 7 billion C. 7 million D. 70,000,000
A. 175 B. 159 C. 195 D. 95
A. 7,000 B. 70,000 C. 700 D. 70
A. 90 billion B. 9,00,000 C. 9 billion D. 9,000,000
A. 900,000,000 B. 90,000,000 C. 9,000,000 D. 90,000
A. 48, 178 B. 38, 184 C. 28, 174 D. 26, 164
A. country, mobile B. country, cell C. city, mobile D. city, cell
A. Mandarin B. Cantonese C. standard D. dialect