---Could you tell me ______?
---About two weeks.
| A．how often are we going to be away |
| B．how often we are going to be away |
| C．how long are we going to be away |
| D．how long we are going to be away |
David may wonder ______ yellow was the colour of rulers in ancient China.
| A．that | B．whether | C．if that | D．where |
______ Millie ______ Billy is patient with children. I think they can make excellent teachers.
| A．neither; nor |
| B．either; or |
| C．not only; but also |
| D．both; and |
World War II ______ in Europe in 1939 and ended in 1945.
| A．broke into |
| B．broke out |
| C．broke down |
| D．broke up |
Jane arrived home ______ her children were watching TV last night.
| A．before | B．after | C．whenever | D．while |