Senior 3 high school students should be given enough sleeping time, ____________ they are busy preparing for exams to enter college.
| A．even so | B．as though | C．as if | D．even if |
Experiments of this kind ___in both the U．S and Europe well before the Second World War．
| A．had conducted | B．have conducted |
| C．have been conducted | D． had been conducted |
The situation forced my mother and I exchanged our roles as child and caretaker, making me grow up much faster than the _____ child.
| A．average | B．ordinary | C．common | D．usual |
It is the first time that he ______ here and now it is high time that he ______ around.
| A．come; should be shown | B．has come; was shown |
| C．came; was shown | D．has come; be shown |
阅读下面材料，在空白处填入适当内容（不多于3个单词）或括号内单词的正确形式。
Mr. Jones woke early one morning. It was a beautiful morning, so went to the window and looked
out. He was surprised to see a neatly dressed, middle-aged professor, worked in the university near his
house. He had grey hair and thick glasses, and was carrying umbrella, a morning newspaper and a bag. Mr. Jones thought that he must
(arrive) by the night train and decided to walk to the university instead
of (take) a taxi.
Mr. Jones had a big tree in his garden, and the children had tied a long rope to one of its branches, so that
they could swing on it.
Mr. Jones was surprised to see the professor stop and look (care) up and down the road.
he saw that there was nobody in sight, he stepped into the garden (there was no fence), put his umbrella,
newspaper, bag and hat neatly on the grass and took hold of the rope. He pulled it hard (see) whether it was strong enough to take his weight, then
(run) as fast as he could and swung into the air on the end
of the rope.'
At last the professor stopped and continued on his way the university, looking as quiet and correct
as one would expect a professor to be.
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