—Wasn’t it Dr．Wang who spoke to you just now?
— ．
| A．I didn’t know he was | B．Yes，it was |
| C．No，he wasn’t | D．Yes，he did |
Naturally, after I tell my brother what to do, he ____ go and do the opposite．
| A．will | B．may | C．can | D．must |
Mr．Smith is one of the ____ customers to our restaurant．
| A．ordinary | B．regular | C．normal | D．common |
He didn’t____ what I said because his mind was on something else．
| A．hold on | B．catch on | C．take in | D．get over |
Expo 2010 Shanghai China will offer ____ wonderful opportunity for ____ cross - culture dialogues．
| A．a;不填 | B．a; the | C．不填;the | D．the;不填 |
The doctor finally gave up the ____ of medicine for full - time writing．
| A．days | B．process | C．skills | D．practice |