—Have you known Dr. Jackson for a long time?
—Yes, since she _________ the Chinese Society.
| A．has joined | B．joins |
| C．had joined | D．joined |
I remember __________ the factory owned a small workshop and two machines.
| A．when | B．how | C．whether | D．what |
She has been teaching in a school since she graduated, so she is not __________ to associating with business people.
| A．addicted | B．devoted | C．accustomed | D．admitted |
__________ a certain doubt among the workers as to the necessity of the work.
| A．There existed | B．It existed | C．There had | D．It had |
—She couldn't have done that sort of thing.
—Whatever she did was reasonable, __________ to what you did.
Besides, it, s none of your business. Get down to __________ your lessons.
| A．comparing; doing | B．comparing; do |
| C．compared; doing | D．compared; do |
—Do you know the new type of computer will come on the market soon?
—Really? It is said to be __________ to any other model. I can't wait to buy one.
| A．inferior | B．superior | C．prior | D．junior |