The children, _____ had played the whole day long, were worn out.
| A．all of what | B．all of them |
| C．all of whom | D．all of which |
Computer power now allows automatic searches of fingerprint files to match a print at a crime ________.
| A．field | B．scene |
| C．location | D．occasion |
—Would you do me a favor to choose a wedding dress?
—Of course, but it is a matter of personal ________.
| A．concern | B．sense |
| C．style | D．taste |
________ have an internal clock that controls the beating of our heart, and the ________ of our breathing.
| A．Human being; steps | B．Humans; pace |
| C．Human beings; steps | D．Man; pace |
Many companies in Guangdong are facing a serious labor ________ following the Rabbit Year’s Spring Festival.
| A．lack | B．shortage |
| C．absence | D．storage |
People all believe that ________ to free trade destroy wealth, benefiting no one in the long run.
| A．administrations | B．attempts |
| C．progress | D．barriers |