Scientistsdoubtwhetherit’s________toregulateone’sbiologicalclockbydrinking.
A、feasibleA
A 可行的、可能且合理的 B 不可相信的、难以置信的 C 时髦的、时尚的 D 贵重的、宝贵的
Asforfamilyeducation,parentsareencouragedtorelyon________ratherthanpunishment.
Whichofthefollowingisnotaninternationalvisitor?
______aretheprimarydestinationsfortheChineseatpresent.
Thehousewasquietinthenight,________theoccasionalcoughingfrommythroat.
Hefound_______difficulttostudymaths.
