The child would not stop crying__________(不论他们百般努力尝试)．

单项选择题【B2】（）

A．immune
B．used
C．accustomed
D．neutral

填空题feeding

单项选择题Arctic explorers may catch colds when________.

单项选择题A．It’’s less time-consuming.B．His wife is tired of cooking.C．It’’s part of his job.D．He is sick of home-cooked meals.

单项选择题According to the passage, what helps to coordinate the complex physical activity of a mammal

单项选择题【B1】（）

A．mental
B．spiritual
C．physical
D．neural

单项选择题It can be inferred from the passage that insects do not have ________.

单项选择题A．20B．22C．21D．23

问答题Why did Marge and her husband think it an extravagance for Marge to go back to work

单项选择题Which of the following is NOT true