He had rushed out of the door __ I could offer my thanks.
| A．unless | B．before | C．until | D．even though |
I’m thirsty. Would you please give me something________.
| A．drunk | B．to drink | C．to be drunk | D．for drinking |
Do you consider _______any good attempting many scientific experiments?
| A．there | B．it | C．this | D．that |
I can’t help _______the house because I’m busy making a cake.
| A．to clean | B．cleaning | C．cleaned | D．being cleaned |
People couldn’t help _____the funny villager.
| A．laugh at | B．to laugh at | C．laughing at | D．laughing on |
She reached the top of the hill and stopped _____on a big rock by the side of the path.
| A．to have rested | B．resting | C．to rest | D．rest |