China always plays ___ active part in fighting against ___natural disasters.
A. /; the B. an; the
C. an;/ D /; /
A competent speaker of a language must have a(n)________ of these different styles.
| A．comment | B．observation | C．command | D．response |
The film，________ the true story of this Red Army general，attracted people’s interest all over the country.
| A．is based on | B．is on the base of |
| C．which is the base for | D．based upon |
________for a long time，but he tried his best to make up for what he missed.
| A．Being ill staying in hospital |
| B．Having been ill staying in hospital |
| C．He was ill staying in hospital |
| D．To be ill staying in hospital |
________ from heart trouble for years，Professor White has to take some medicine with him wherever he goes.
| A．Suffered | B．Suffering | C．Having suffered | D．Being suffered |
Did you ask whose computer________？
| A．this blue one was | B．is this blue one |
| C．it was this blue one | D．this blue one is |