下列图示的四种实验操作是常用的分离提纯的方法，其名称从左到右依次是
| A．蒸发、蒸馏、过滤、萃取 | B．过滤、蒸馏、蒸发、萃取 |
| C．过滤、蒸发、蒸馏、分液 | D．萃取、蒸馏、蒸发、过滤 |
I tried phoning her office, but I couldn’t _______. 
| A．get along | B．get on | C．get to | D．get through |
His sister left home in 1998, and _______since. 
| A．had not been heard of | B．has not been heard of |
C．had not heard of | D．has not heard of |
What do you mean, there are only ten tickets? There _____ be twelve
| A．should | B．would |
C．will | D．shall |
Could I speak to ______ is in charge of International Sales please?
| A．who | B．what |
| C．whoever | D．whatever |
How much _______ she looked without her glasses!
| A．well | B．good | C．best | D．better |