--- May I visit you at 10 o’clock tomorrow morning?--- I’m afraid I ______ a document for my boss then. What about 12:00?
Great changes ______ in my hometown in the last ten years.
This school has strict rules. Almost no one can ________ cheating in exams.
John is very tall, so he is easy to ________ in the crowd.
Participants in the program were 32 students identified ________ individual intelligence tests, group achievement test scores in math and science, and student interviews.
I can’t say I’m the best. I have only _________ made more efforts than others.