In summer milk quickly go bad _____it is put into a fridge.
| A．though | B．unless | C．because | D．once |
Jim has never been to Japan，________？
A．was he B．has he C．didn’t he
Paul is very short，________，he plays basketball very well
A．and B．however C．then
Language Doctor will give us ________ advice this Sunday morning．
A．an B．a C．some
--Why don’t you listen to the radio？
-- ________
A．That’s all right． B．You’re welcome． C．That’s a good idea．
Don’t forget ________ the letter to your friend．
A．send B．sent C．to send