If you meet trouble, you can ______ your friends ________ help.
I don’t doubt _________.
—Is your uncle in his _________?— Yes. His _________ birthday is coming next month.
A few students don’t know ________ they should deal with stress before________ an exam.
—How much difficulty did you have this problem? — .
—It’s dangerous to walk across the street carelessly.—You’re right. We can’t be _________ careful while crossing the street.