用正确的形式填空。

     John is in Paris. He wants(1) ______ (meet) a friend in Saul Street. But he (2) _______(not know) the street. So he asks a man in the street.

     “Excuse me. Where’s Saul Street?”

     “You can (3) ______ (catch) the No.3 bus and it (4) ______(take) you half an hour,”(5) ______

(answer) the man.

     John asks another man the same question. But the man says,“It’s not far from here. You (6)______

(get) there in five minutes. (7)______ (go) along this road, and take the third (8)______(turn) on the right. It’s on your left.”

     John doesn’t know what (9) ______(do). At last, he take a taxi. He knows that if he wants to know

how to get the right place, he’d better (10)______(ask) a policeman.

模型设计完成后需填倒凹的部位有 （）

A.余留牙颊面倒凹

B.基托覆盖区内所有余留牙舌面的倒凹

C.妨碍义齿就位的软组织倒凹

D.基牙上的倒凹

E.骨尖处，硬区和未愈合的伤口处