【题目】The book is very useful. I am ________ with it.

【题目】We should do ________ part to protect the environment.

【题目】You shouldn't worry about your son. He can________ his new school life easily.

【题目】What's wrong with Meimei? She ________ spoke a word the whole morning.

【题目】Tom is ________ honest boy, and he never tells lies or plays tricks on others.

【题目】The students were happy that they would have a _______ winter holiday.

【题目】I never doubt_______ he can do the job well, but I doubt_______ he will get here in time.

【题目】The art show in town will be ______ worth _______, I’m sure .

【题目】The coach thinks ____of Mary's sports talents, for she jumped very _______ at the sports meeting.

【题目】Our headmaster isn’t in. I can’t find him anywhere. Did you notice him ______ the office?