He ______ the test again, in which case, his mother will be very disappointed.
| A．might fail | B．must have failed |
| C．should fail | D．could have failed |
______that blood diseases are going to continue, we’ll have to______ them.
| A．Assumed; doing research at | B．Assuming; do research on |
| C．Assuming; do research for | D．Being assumed; do research on |
When Nancy was at college, she ______ three foreign languages. But I am surprised to find that she ______ all except a few words of each.
| A．spoke; had forgotten | B．had spoken; had forgotten |
| C．spoke; has forgotten | D．had spoken; has forgotten |
The journalist once told us that the old wooden house ______ the Smiths’ ______centuries ago.
| A．belonging to; came into existence |
| B．belonged to; brought into existence |
| C．was belonged to; has come into existence |
| D．was belonging to; called in existence |
---Why, Emily, you look so energetic!
---Well, I ______ in the gym for a slim figure so far.
| A．am working out | B．had been working out |
| C．worked out | D．have been working out |
When ______ if he had any idea of what the novel was about, Jack just kept silent.
| A．asking | B．asked |
| C．to ask | D．being asked |