Jack is late again. It is ___ of him to keep others waiting.
| A.normal | B.ordinary | C.common | D.typical | 
But for the help you gave me, I _______ the examinations.
| A.would have passed | B.would pass | 
| C.wouldn’t have passed | D.wouldn’t pass | 
When a pencil is partly in a glass of water, it looks as if it ______.
| A.breaks | B.has broken | 
| C.were broken | D.had been broken | 
You didn’t let me drive. If we ____ in turn, you ____ so tired.
| A.drove; didn’t get | B.drove; wouldn’t get | 
| C.were driving; wouldn’t get | D.had driven; wouldn’t have got | 
Yesterday, Jane walked away from the discussion. Otherwise, she ____ something she would regret later.
| A.had said | B.said | 
| C.might say | D.might have said | 
Without the air to hold some of the sun’s heat, the earth at night ____ for us to live.
| A.would be freezing cold | B.will be freezing coldly | 
| C.would be frozen cold | D.can freeze coldly |