Psychological studies show that some people are quick-tempered _____.
| A．at heart | B．on purpose | C．in person | D．by nature |
__________ we gave him something to eat, he would save it up for his little sister.
| A．Whatever |
| B．However |
| C．Whichever |
| D．Whenever |
Tim is in good shape physically __________ he doesn't get much exercise.
| A．if |
| B．even though |
| C．unless |
| D．as long as |
The engineers are so busy that they have zero time for outdoor sports activities，__________ they have the interest.
| A．wherever |
| B．whenever |
| C．even if |
| D．as if |
Teachers suggested that parents __________ their children under 12 to ride bicycles to school for safety.
| A．would not allow |
| B．did not allow |
| C．couldn't allow |
| D．not allow |
Bill suggested_____ a meeting on what to do for the Shanghai Expo during the vacation.
| A．having held |
| B．to hold |
| C．holding |
| D．hold |