Teaching pronunciation class to a mixed group of learners can ________ a teacher with many challenging problems.

（天津市河东区201 4年高三二模考试）3.1 wonder if this dress is____in a larger size. This one is too tight.

One reason for her ________ for city life is that she can have    easy access to places like shops and restaurants.

 Doctors often advise us to pay more attention to our diets and mental health and to take ________ examinations.

I think I'll have a cold drink __________ coffee.