I can’t believe you got fined for speeding．I of you to be the most careful．
| A．am thinking | B．think | C．have thought | D．thought |
They appearedme, so I had to explain to them.
| A．misunderstanding | B．misunderstood |
| C．to be misunderstood | D．to have misunderstood |
If China’s space technology has achievedbreakthrough in this field, it really is
amazing wonder.
| A．the; an | B．a; an | C．不填; the | D．a; 不填 |
All passengers ____, please fasten your seat belts and remain seated ____the plane is landing．
| A．on board; until | B．abroad; since | C．on the board; before | D．aboard; when |
He ____ busy then; otherwise, I believe, he would have given you a hand．
| A．had been | B．were | C．must be | D．was |
It is not like Mr．Smith, who is a gentleman, _____his wife so rudely．
| A．to treat | B．treating | C．should treat | D．treated |