. "How many people________? Remember we will have to cover their travel expenses." "Well, it's up to you. I can assure you I won't protest."18/20"How many people________? Remember we will have to cover their travel expenses." "Well, it's up to you. I can assure you I won't protest."will we inviteshould we invitewe want to invitewould we inviteGiải thíchChọn đáp án B