Doctors have said that as many as 50% of patients don’t take medicine_______.
| A．like directed | B．to be directed | C．as directed | D．so that directed |
There is no doubt that _____ a goal, one needs not only knowledge but also good personalities.
| A．realized | B．realizing |
| C．to realize | D．being realized |
In some places, red indicates sadness, as in South Africa, _______ it is the color people wear when they mourn.
| A．which | B．where | C．when | D．what |
The fans _____the names of the band members when they appeared at the airport.
| A．had screamed out | B．were screaming out |
| C．would scream out | D．have screamed out |
He is really nervous. He ______back and forth all the night waiting for the results.
| A．has been walking | B．had walked |
| C．walked | D．is walking |
Mary _______as a secretary in this company for twenty years and now she stays at home taking care of her own garden.
| A．has served | B．had served |
| C．is serving | D．served |