单选题 They needed someone to ______ for a pianist who couldn’t make it, and her professor recommended her.

单选题 Without warning, there was a(n) ______ storm and the waves swept over the boat.

单选题 He entered the film industry, taking small roles and writing ______ for a famous film company.

单选题 They are able to take ______ ideas, thoughts, and generalizations and weave them into meaningful patterns.

单选题 Let’s embrace Chinese culture this summer and get ______ in the richness of traditional Chinese music and dance!

单选题 The question was how to maintain that kind of ______ for a vehicle that weighed considerably more than 3,300 pounds.

单选题 The Chinese scientific community will ______ with their international peers in frontier science research.

单选题 Doctors consider it their ______ duty to protect and save the lives of their patients.