You wil find what great benefit the computer you own can be____ each time you use it to help you work.
| A．for | B．of | C．at | D．on |
We decided to ______ a chance on the weather and have the party outdoors.
| A．make | B．take | C．have | D．pick |
The thief had himself _____ by the police when he was trying to break into the hotel.
| A．to spot | B．to be spotted | C．spotted | D．being spotted |
The reason was _____ I was busy with my work at that time.
| A．why | B．because of | C．that | D．what |
. He misunderstood _____ I said.
| A．that | B．when | C．where | D．what |
. The trouble is _____ we are short of hands.
| A．what | B．that | C．how | D．why |