. In order to learn the _____ of the family business, Bill took a job as messenger boy in one of the offices.
A. ins and outs B. dos and don’ts C. heads and tails D t’s and i’s
Turn on the television or open a magazine and you ________ advertisements showing happy families.
| A．will often see | B．often see |
| C．are often seeing | D．have often seen |
. Sales of CDs have greatly increased since the early 1990s, when people ________ to enjoy the advantages of this new technology.
| A．begin | B．began | C．have begun | D．had begun |
The city is built _____ two rivers come together.
| A．in which | B．which | C．where | D．that |
You are wanted ___ phone.
| A．by | B．on | C．at | D．in |
The house is lighted ____ electric light.
| A．by | B．to | C．in | D．with |