Because the shop ________，all the Tshirts are sold at half price.
| A．has closed down | B．closed down |
| C．is closing down | D．had closed down |
Mr. Richard would not come for supper because he was in the research of bird language.
| A．shocked | B．cared |
| C．buried | D．spared |
Anyway, I can’t cheat him－it’s against all my________.
| A．concerns | B．principles |
| C．purposes | D．signs |
It's doing the things you likemakes life happy.
| A．which | B．that |
| C．so | D．and |
Only when you can find peace in your heartgood relationship with others.
| A．will you keep | B．you will keep |
| C．you kept | D．did you keep |
Students should involve themselves in community activitiesthey can gain experience.
| A．who | B．when |
| C．which | D．where |