The monument was built in honor of the explorer who was believed _____ the river.
| A．to have discovered | B．to have been discovered |
| C．to discover | D．having been discovered |
The small victories in the fight against poverty and hunger have helped many people who are in trouble allowing them to maintain dignity.
| A．before | B．after | C．for | D．while |
Some pre-school children go to a day care center, __________ they learn simple games and songs.
| A．then | B．there | C．while | D．where |
Hardly had the employees ________ with their work when the rain stopped.
| A．passed on | B．focused on | C．depended on | D．carried on |
I don’t know the girl _____ in the storm.
| A．to catch | B．caught | C．catching | D．to be catching |
— I regret _______ you that you failed the exam.
— How I regret _______ so much time playing computer games.
| A．telling; wasting | B．telling; to waste |
| C．to tell; wasting | D．to tell; to waste |