单项选择题
Certain layers of the atmosphere have special names （）.
A.whichindicatedtheircharacterproperties B.whosecharacteristicpropertiesareindicating C.whatcharacterizetheirindicatedproperties D.thatindicatetheircharacteristicproperties
单项选择题 Love can （） imperfection.
单项选择题 In a given month, Friday is the 21st day of the month. What day of the week was the 5th of the month? （）
单项选择题 Alberta （） fourth in population among Canadian provinces.
