Ⅰ. 用所给词的适当形式填空(20分)
1. I am looking forward to (buy)a big house for my parents.
2. The Smiths are (plan)to visit Guangzhou next weekend.
3. Children’s Day is coming. The (child)in the primary school are really happy.
4. You should get up (early)than usual to study because there will be an important test tomorrow.
5. Lang Lang is one of the (great)pianists in the world.
6. I think the electric lamp is one of the most useful (invent)in the 20th century.