– I ran 10 miles last weekend. Can you believe that?
– Wow, that ______ easy!
| A．mustn' t be | B．mustn't have been |
| C．can't have been | D．couldn’t be |
John did the task____ his sister.
| A．as good as | B．as better as | C．as well as | D．as best as |
_____ he had not been ill , Tom would have won the race.
| A．Unless | B．As | C．If | D．Until |
Stand closer______ you'll be able to see it better.
| A．or | B．while | C．but | D．and |
The teacher never wears anything other than a suit _____ the season.
| A．whatever | B．wherever | C．whenever | D．however |
______ there is a snowstorm or other bad weather ,the bus always comes on time.
| A．Because | B．if | C．When | D．Unless |