Jack wasn't saying anything but the teacher smiled at him ____ he had done something very clever. A as if B in case C while D though
Make a tentative guess _____ Peking Man _____ have done and used thousands of years ago.
The popular cartoon Mulan is a (an) _____ of a Chinese poem for children.
---How long do you think the terrible snow will _____? --Sorry, I didn’t listen to the weather forecast.
She thought herself _____ to her friends because her family was rich.
As he works in a remote area, he visits his parents only _____.