---Why do you pay a visit to your parents ________?
---_______ they live in a remote village far from here.
| A．occasionally; Because | B．every now and then; Since |
| C．from time to time; Now that | D．once in a while; As |
Both of my parents insisted _______ a computer for me, but I don’t think it is necessary.
| A．to buy | B．buying |
| C．on buying | D．in buying |
Not only should you get used ______ under difficult conditions but you also you pay more attention ______ your work well.
| A．to work, to do | B．to working, to doing |
| C．to work, to doing | D．to working, to do |
Once your business becomes international, _____ constantly will be part of your life.
| A．you fly | B．your flight |
| C．flight | D．flying |
Remind me _______ the medicine tomorrow.
| A．of taking | B．taking |
| C．to take | D．take |
The silence of the library was sometimes broken by an occasional coughorby the sound of pages _______.
| A．turned | B．having turned |
| C．to be turned | D．being turned |