Find which word does not belong to each group. A. quick B. wireless C. automatic D. hi-tech

Choose the correct option to complete the following sentence: The urban…………… have dumped a lot of garbage onto this river.

Find which word does not belong to each group. A. big B. tall C. wide D. expensive

Choose the correct option to complete the following conversation: Minh: Which …………..of the US is The Golden Gate Bridge in? Lan: California.

Choose the correct option to complete the following sentence: ……………… is a common problem in many big cities around the globe.

Choose A, B, C or D to complete the following sentence: Tokyo, the ______ of Japan, is a big city.