用句中划线部分词的反义词填空，使句意完整。

1. The bag is too heavy. You are not tall. You should carry the_____one.

2. His coat is_____. His mother wants to buy him a new one.

3. He says, "English is very interesting, but maths is_____."

4. My ruler is long. But his ruler is_____.

5. His father is very old. But he likes to play with _____ people.

某房地产开发商同时开发甲、乙、丙、丁四个小区，拟定销售价格分别为1500元/m²、900元/m²、2000元/m²和2400元/m²，此时四个小区的需求价格弹性系数分别为-1.23、-0.98、-1.36和-1.43，则可以判定( )。

A．在任何情况下，丁的需求价格弹性最大

B．甲、丙、丁都有可能通过降价提高销售收入

C．在任何情况下，乙的需求价格弹性最小

D．此时乙的需求价格弹性最大