单项选择题A．Mr. Frost has moved to another place when the woman’ s letter reached him.B．Mr. Frost overlooked the woman’ s letter.C．Mr. Frost asked his wife to reply the letter but she didn’t.D．Mr. Frost died.

单项选择题A．It involves what our senses tell us.B．It involves what our minds explain.C．It involves what we see with our eyes only.D．It involves both what our senses tell us and What our minds explain.

单项选择题A．Her parents suggest getting an anthropology degree.B．She finds some courses for business degree difficult.C．A lot of students declare their major in anthropology.D．She has studied anthropology abroad for a semester.

单项选择题A．Every year people add large amount of fertilizer to the soil.B．The water in the Nile overflowed its banks once a year.C．There are no tides in the Mediterranean.D．The Nile rises and falls once a year, leaving the land a layer of rich, black soil.

单项选择题A．They are not active animals.B．The weather is too drought and sweltering.C．They have nothing to eat during the summer.D．Their body temperature is not high enough.