—What is the man, do you know?—I don’t know exactly. But I think he can be ________ but a teacher.
My younger sister enjoys listening to music very much, with pop music _______.
Please tell me how the accident_____. I am still in the dark.
American Indians ________ about five percent of the U.S. population .
I can think of many cases ______students obviously know a lot of English words and expressions but couldn’t write a good essay .
When I get puzzled about some difficult problems, my teacher always encourages me and says , “Take it _________ .”