问题
Sam ________ some knowledge of the computer just by watching others working on it.[ ]
A: brought up
B: looked up
C: picked up
D: set up
B: looked up
C: picked up
D: set up
正确答案是：
同类题型
The reason_______ he didn’t come was_______ he was injured.
One can be strong, brave and faithful after all these hardships he has ________.
Hey, do remember to buy some apples for me when shopping.—Oh, I’ve almost forgotten it, but _____.
s that noise, John—Oh, don’t you know that the school library