-----Tom. You look very bored and tired.
-----Yes, I ______ my father on the farm until seven o’clock this morning.
| A．have been helping | B．had helped | C．was helping | D．am helping |
__________ you go，you should bear the motherland in mind.
| A．Where | B．Whenever |
| C．However | D．Wherever |
_________，so he didn’t come to school last week.
| A．Though he was ill | B．Being ill |
| C．Having been ill | D．He was ill |
In my opinion，his suggestion__________right or not，should be considered.
| A．if | B．which | C．when | D．whether |
It was quite a long time__________I made it out what had happened.
| A．after | B．before | C．when | D．since |
So long as we study with a strong will，we can answer the question__________hard it is.
| A．no matter what | B．how |
| C．whatever | D．however |