Ifyouhavedifficultylocatingaparticularbook,pleaseaskourlibrariansfor___(assist).
assistance
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Weallknowaboutthe_____thatsmokingcandotoourhealth.
Eachstudentistogiveashort___(speak)totherestoftheclassattheendofthesemester.
Thegroupismadeupoflocal___(music)whohavebeenperformingtogetherforseveralyears.
Nowthatyouknowallthefacts,youcanmakeaninformed___(choose).
对中国学生而言,用英语思维比说英语更难。