I don’t think the experiment is ______ failure. At least we have gained ______ experience for future success.
| A．不填；the | B．a; the | C．a ; 不填 | D．不填; 不填 |
---Oh dear! I’ve just broken a glass.
---Never mind. _____.
| A．It can’t be helped | B．You are so careless |
| C．You are welcome | D．Bad luck |
Those natives who _________ move from place to place with their animals in the past have moved into new houses at last.
| A．could | B． would | C． might | D．should |
— Have you ever visited the Opera House?
—Yes．When I was in Sydney, I ______ it twice．
| A．have visited | B．had visited | C．visited | D．would visit |
The traffic accident _________all his life. After that he was limited to a wheelchair.
| A．damaged | B．destroyed | C．harmed | D．ruined |
______ was reported in the local paper, since the carrying out of the performance salary, efficiency in work has ______doubled.
| A．As … more than | B．It …rather than | C．What … over | D．That… less than |