It was playing computer games that cost the boy plenty of time that he ______ have spent studying.
| A．might | B．must | C．could | D．ought to |
A needle __________ was given to her but she couldn't __________ the button on.
| A．and a thread； sew |
| B．and the thread； sewed |
| C．and thread； sew |
| D．or a thread； sewed |
A much better way must be found to achieve an equal __________ of the resources.
| A．distribution |
| B．contribution |
| C．catalogue |
| D．separation |
Not the way he did it but his words __________ criticized by people present.
| A．has |
| B．had |
| C．is |
| D．were |
He is a strict but kind-hearted father, __________ the children respect but are afraid of.
| A．which |
| B．that |
| C．one whom |
| D．for whom |
The reason __________ he is late is __________ there was a breakdown on the railway.
| A．why ； that |
| B．because； that |
| C．that ； because |
| D．why ； why |