________ (fail) several times, they need some encouragement.
Having failed
暂无解析
Abeamoflightwillnotbendroundcornersunless________(make)todosowiththehelpofareflectingdevice
Wooddoesnotconductelectricity;________.
Ihavebeenstudyinghereforfouryears,bynextsummerI________.
You________gonow.It’sgettinglate.
________(catch)intherain,hewaswettotheskin.
