It won’t be long _______ you regret what you’ve done.
| A．after | B．before | C．since | D．then |
-------How did you find your missing pen?
-------___________
| A．I found it in my bag | B．Quite by accident. |
| C．It wrote well | D．I had no idea where it was. |
___________his homework, the boy went out to play.
| A．Doing | B．Done | C．Having done | D．To do |
------- Will you pass me the newspaper?
--------___________
| A．That’s right | B．That’s all right | C．All right | D．You’re right |
His laziness ___________it hard for him to study well.
| A．makes | B．gets | C．has | D．brings |
______________ is quite obvious that there is no water on the Mars.
| A．There | B．It | C．That | D．This |