C - What about something TO EAT?(要不要来点东西吃?)
"What about..." 是在给建议时或问到关于某个东西时用的.
"eat","drink","get" 都只是动词,不能填.
C-The two girls are twins.THEIR names are Lucy and Lily.(那两个女孩是双胞胎.她们的名字是Lucy&Lily.)
they=她们 (They look alike.她们长的很像.)
they're = they are = 她们是 (如果句子里没有 “names/名字”,这就是对的答案.-她们是Lily&Lucy.)
their= 她们的.(她们的名字是Lucy&Lily.)
theirs = 属于她们的.(This is theirs.= 这是属于她们的.)