Nowadays we take___ exercise a day as we need because of widely used automobiles.
| A．less than half | B．less than as half as |
| C．less than half as much | D．half less than |
________is it ________has made Peter ________he is today?
| A．What; that; that | B．That; that; what | C．What; what; that | D．What; that; what |
They__________on the program for almost one week before I joined them, and now we ________on it as no good results have come out so far.
| A．had been working; are still working | B．had worked; were still working |
| C．have been working; have worked | D．have worked; are still working |
He was a bit nervous. He _________his spare breath with a soft sound that was almost heard by the audience.
| A．gave out | B．let out | C．picked out | D．blew out. |
— I failed my driving test again.
— Don't be discouraged. You'll be successful ________.
| A．at times | B．at one time | C．on time | D．in time |
The question was so ________ that there was a ________ expression on the teacher's face.
| A．puzzled; puzzling | B．puzzled; puzzled |
| C．puzzling; puzzled | D．puzzling; puzzling |