---- Do you mind if I smoke?
----________.
| A．Why not? | B．Yes, help yourself. |
| C．Go ahead. | D．Yes, but you’d better not. |
If _______, I’ll show the committee what I have found out about the matter.
| A．permitting | B．being permitted | C．permitted | D．having permitted |
Fuzhou-Quanzhou-Xiamen high-speed railway has been running for more than a year. ______, fewer people take the trip by bus.
| A．In addition | B．As a result | C．Besides | D．On the other hand |
I wonder whether this student has ______ it takes to be a music major.
| A．what | B．how | C．which | D．when |
–A boy was killed by the tiger in the zoo.
–He was believed ______ into the cage while feeding the tiger without permission.
| A．to fall | B．to be falling | C．to have fallen | D．having fallen |
As the most acute one in _______ history of all epidemics, the Spanish Flu had ______ tendency to strike the young and fit rather than the old.
| A．不填；the | B．不填; a | C．the; 不填 | D．the; a |