What he lacks is more patience,___________?
| A．isn't it | B．is it | C．doesn't he | D．does he |
There is＿＿＿＿thing as failure. Failure is just life trying to move us in another direction.
| A．no such | B．not such | C．such no | D．such not |
Yesterday afternoon, I ______ basketball with my classmates for two hours.
| A．play | B．played | C．have played | D．had played |
In my opinion, life in the twenty-first century is much easier than ___________.
| A．that used to be | B．it is used to |
| C．it was used to | D．it used to be |
The field research will take Joan and Paul about five months; it will be a long time _________ we meet them again.
| A．after | B．before | C．since | D．when |
— I phoned you yesterday morning. A girl answered, but I didn’t recognize the voice.
— Oh, it __________ my younger sister. She was in my room at that moment.
| A．must have been | B．should have been |
| C．could have been | D．may have been |