The doctor was busy writing an essay in ________ with his recent research.
-Does coffee really help when you have to work late into night? -Yes. As far as I’m concerned, I feel very ________ after a coffee.
There is not much time left, so I’ll tell you about the plan ________.
-Have you known the exam result? -Not yet. I guess the paper ________ by the teacher now.
________ production up by 50%, the factory has another wonderful year.
Animals are obviously ________ lower form of life than ________ man.