I have not heard anything from him since his _______.
A
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Whenmakingmoderncameras,peoplebeganto_______plasticsformetal.
Ifyouhaveanyproblemsduringyourstudyhere,pleasedonot_______tocallmeforhelp
Withthehelpofthegovernment,alargenumberofpeople---_______afterthefloodin1991.
Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.
ThecollegestudentsinChinaare_______fromsmokingoncampusbecausethiswilldothemnogood.