___ you have finished your homework, you can go and play with your friends.
| A．As if | B．So that | C．Even if | D．Now that |
31. A warm thought suddenly came to me _______ I might use the pocket money to buy some flowers for my mother’s birthday.
| A．if | B．when | C．that | D．which |
30. It was quite a few years the accused was declared innocent and set free.
| A．since | B．that | C．when | D．Before |
29. She looked at him ____ and her words sounded ______.
| A．warm; tireless | B．cold; sharply | C．warmly; tirelessly | D．coldly; sharp |
28. Those who bring sunshine into the lives of others cannot keep ____ from themselves．
| A．it | B．one | C．those | D．Them |
27. ---I don’t suppose she could have done well in the exam last week，_____ she?
---_____, she almost failed to pass the exam.
| A．could ; Yes | B．has ; No | C．did ; No | D．couldn’t ; Yes |