Erin's hobby is collecting match boxes.She spends a lot of time on it after school.She has been collecting more than four hundred from different countries.They ____ different in colors and sizes.A.are both B.are all

问题描述:

Erin's hobby is collecting match boxes.She spends a lot of time on it after school.She has been collecting more than four hundred from different countries.They ____ different in colors and sizes.
A.are both B.are all