Newton was playing under an apple tree ____ an apple fell onto his head.
| A．when | B．while |
| C．after | D．before |
Look! The sign on the wall ________ “No photos”.
| A．says | B．read |
| C．writes | D．is saying |
Don't worry. He is _______ to take care of the little baby.
| A．carefully enough | B．careful enough |
| C．enough carefully | D．enough careful |
—Does your father still smoke?
—No, he has succeeded in_____smoking for three years.
| A．giving up | B．give up |
| C．gives up | D．gave up |
—How long have you been in Beijing？
—_____
| A．Five years ago. | B．Since five years ago. |
| C．For five years ago. | D．Since five years. |
—How much is the white coat?
—It’s_____yuan.
| A．one thousand, six hundred,eighty-eight |
| B．one thousand six hundred eighty-eight |
| C．one thousand, six hundred and eighty-eight |
| D．one thousand and six hundred and eighty-eight |