用所给词的适当形式填空。 |
1. If you work hard, you will be ___________(success). 2. Those workers spent ten months _____________(build) that bridge. 3. They often find it difficult ___________(learn ) English. 4. Pollution is one of the most serious _______ in the world (problem). 5. I had enough time_______(work) out that math problem. 6. The doctor told me to give up _______ (smoke). 7. I want _______(play) the piano in the evening. 8. We should stop_______(throw) about in public. 9. The knife _______(use) to cut things. 10. I think English is very _______(help) to know about the world. |