Rewrite :

As the streets become busier , they will be more and more dangerous for commuters ( more )

Comparison with noun :

1. Does a mango contain more sugar than an apple ? ( less )

2. I spend more time watching tv than my younger sister does . ( less )

3. People in developed countries use more money on health care and education than in underdeveloped countries ( don't )

4. Are there more health centres in my city now than ten years ago ? ( fewer )

5. There are more wealthy people in big cities than in the countryside ( fewer )

6. The standards of living in the cities shows more improvements than in rural areas . ( much )

Give the opposite words of the following words :

reserved ><

mean ><

attractive ><

shy ><

exciting ><

sociable ><

Cho tam giác ABC vuông tại B có BC = \(\sqrt{7}\)cm, AC = 4cm. Độ dài cạnh AB là:
     A. 3cm                      B. \(\sqrt{33}\)cm                   C. \(\sqrt{23}\)cm                    D. 9cm