He started to study ecology and decided to _______his whole life to the science.
— I’m sorry that I can’t go to your party tonight.— ________? Haven’t we agreed on it?
_____ anxious and _____ relaxed the learner, _____ their language acquisition.
The boy’s uncle gave him a large toy train _______.
Susan’s face turned red when she found the teacher’s eyes _____ her.
I can’t help _____ myself on passing the examination.