Cloning the sheep ----Dolly is a big ____ in science.
| A．progress | B．run | C．jump | D．rush |
Alice fixed her eyes upon Bob, there was an expression __ that he could not understand.
| A．in it | B．on them | C．in them | D．on it |
Oh, Tom your face is very dirty.Look at yourself ___ the mirror.
| A．on | B．at | C．in | D．under |
Madame Curie and her husband continued to work __ all the discomforts.
| A．in spite | B．in spite of | C．in the spite of | D．on spite of |
Not only he but also you __ wrong.
| A．is | B．be | C．are | D．am |
This writer’s books are devoted ___ children.
| A．in | B．to | C．on | D．about |