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 |
Don’t take up other people’s personal space, ______ will bring much inconvenience to them.
| A．where | B．which | C．what | D．that |
Everyone queued up before the booking office in silence, having nothing to do but _________.
| A．to wait | B．waiting | C．wait | D．waited |
I tried all I could do ______ the topic at the meeting, but failed.
| A．avoid mentioning | B．to avoid mentioning |
| C．avoiding to mention | D．avoiding mentioning |
--The Chinese government is trying to protect the giant panda.
--I know. By 2020, they _________ about 69,500 square miles of land to the country’s nature reserve system.
| A．add | B．are adding |
| C．will add | D．will have added |
Fishing and seafood harvesting has been forbidden along the coast of Galicia, forcing many fishermen ______.
| A．out of order | B．out of touch |
| C．out of sight | D．out of work |