After the long journey, the Smiths returned home, ____.
| A．safe but tired | B．safely but tired | C．safe and tiring | D．safely and tiring |
相关试题
.Water, which seems to be so simple and common, is ______ makes life possible.
| A．that | B．which | C．what | D．where |
The number of students in this college _____ by 10% every year.
| A．rises | B．lifts | C．raises | D．arises |
.______ the beginning of the 19th century did scientists know that all matter is made up of 
atoms.
| A．At | B．By | C．Up to | D．Not until |
Many people believe that _______ will takes years to develop a car that does not pollute the air.
| A．it | B．that | C．there | D．this |
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