She sat on the top of the stairs _____ her head on her crossed arms and cried.
| A．for | B．when | C．with | D．while |
—Why are you looking at me in _____ surprised expression?
─ Don’t you think _____ question you asked is surprising?
| A．the; / | B．a; the | C．a; a | D．the; a |
The good thing about children is that they _____ very easily to new environments.
| A．adapt | B．appeal | C．attach | D．apply |
_____ in thought, he sat at the edge of the bed, with his eyes _____ on the letter in his hand.
| A．Lost; fixing | B．Losing; fixed | C．Lost; fixed | D．Losing; fixing |
His mother looked very tired，for she _____ the house herself all day.
| A．had cleaned | B．has been cleaning | C．had been cleaning | D．has cleaned |
Having worked for as long as ten hours, the young man lay on the ground, _____.
| A．tiredly and hungrily | B．tired and hunger |
| C．tired and hungry | D．tiring and hungry |