She was so in her job that she didn’t hear anybody knocking at the door [ ]

Skimming is quite different from scanning it is an effort to get general information rather than detailed facts.

I don’t think that the necklace is made of diamond, _______

is the man, do you know-— I don’t know exactly． But I think he can be ______but a teacher．

I feel it hard to keep up with my classmates. Butwhenever I want to _______, my teacher always encourages me to work harder.