Bothsugarandsaltcan______inwater.
A、desertStudentswith_______problemsmayapplyforstudentloans.
Sometimesitisverydifficultto_______someoftheEnglishwords.Eventhenativespeakercannothelp.
Manykindsofanimalsarebelievedtohave_________fromtheearth
The engineers in this lab spent several weeks _______their plans for the new bicycle.
We are _______ at the rapid progress Mark has made in this semester.
