Do you like this MP3 player, Tom— Yes. It can play beautiful music, ______ it’s very expensive.

The problem is how ________ the drug abuse remains in America. [ ]

Students in their school ___________ trees on Tree Planting Day every year.

When Japanese invaded China, all the Chinese refused to ____ themselves to their poor status and fought back.

The children in poor areas can’t afford theireducation. We should think ________ to help them.