—Your mother becomes more and more forgetful.
—Yes. She searched for her cellphone for a whole day last Sunday but it ______ in her coat pocket the next day.
| A．turned out | B．turned on | C．turned over | D．turned up |
—What_________him to do such a silly thing?
—I have no idea.
| A．made | B．drove | C．brought | D．let |
The student was just about to_________ the question,when suddenly he found the answer.
| A．arrive at | B．work out |
| C．stick to | D．give up |
.I wish I_________ longer this morning,but I had to get up and come to class.
| A．could have slept | B．slept |
| C．might have slept | D．have slept |
We _________ our breakfast when an old man came to the door.
| A．just have had | B．have just had |
| C．just had | D．had just had |
_________with the size of the whole earth,the highest mountain does not seem high at all.
| A．When compared | B．Compare |
| C．While comparing | D．Comparing |