In this school, most students prefer takingpains in their studies to_________with a better education.

Is this a pen— .

Miss Xu is ______ Music teacher. is a good teacher.

(2013·四川，5)—Why are your eyes so red？You________have slept well last night.—Yeah，I stayed up late writing a report.

The word “ungelivable”, based on Chinese, which has become a big hit online very quickly, ______ a message that Chinese can also serve as an addition to English vocabulary.