Ifyouhaveanyproblemsduringyourstudyhere,pleasedonot_______tocallmeforhelp
A、hesitateBothsugarandsaltcan______inwater.
Freemedicalserviceis_______tonearlyallthecollegestudentsinChina.
Wecannot_______allthemagazinestogether.
Manykindsofanimalsarebelievedtohave_________fromtheearth
IntheUnitedStates,theforeignpolicyisdecidedbythe________government,notbyeachstate.