The family is very poor and they can’t________ to buy a computer for him.
| A．play | B．watch | C．afford | D．carry |
They aren't our books. Are they___________?
| A．your | B．yours | C．them | D．their |
--- What ____ he_____ last weekend?
--- He went to a movie.
| A．does; do | B．did; go | C．did; do | D．does; go |
This pencil is___ than that one.
| A．as long | B．longest | C．long | D．longer |
You should study harder______ it is too late to catch up.
| A．if | B．when | C．after | D．before |
Tell the boy the news. He is ______to understand it.
| A．enough old | B．enough young | C．old enough | D．young enough |