Some people plan to ______ a volunteer project to help the disabled children.
Nancy doesn’t want to buy the skirt because _____ the colour ______ the size fits her.
—As a teacher, we can’t be _______ patient with our students.
Don’t be crazy about computer games, ________ you will fall behind others in study.
____ UN report shows ____ number of the poor around the world is becoming bigger.
—_______ to keep our classroom clean and tidy.—You are right.