---Why is the little boy crying over there? -----He is too short to reach ___ the toy bear ___ the toy car on the shelf?
This morning I had hardly got to my school when it_____ to rain.
Stephen Hawking can’t walk or even speak,_____he has become very successful.
_____of the two story books are very interesting, so I can’t decide which one to choose.
Mary is tired of learning because she is_____ to do better than she can, both at school and at home.
Sometimes most of us probably are angry______our friends, parents or teachers.