【推荐1】Word comes that free souvenirs will be given to ____________ comes first.

【推荐2】You can ask for help ________ has rich experience in solving this kind of problem. (用适当的词填空)

【推荐3】To improve the quality of our products, we asked for suggestions _______ had used the printing machines.

【推荐1】单句填空
1. Attempts to find a______（solve）have failed.
2. This small country has an______（amaze）variety of landforms.
3. ______（found）in 1911，Qinghua University is one of the most famous ones in China.
4. If cancers are spotted early there’s a high chance of ______（survive）.
5. Can you figure out ______ the poet really means in this poem？
6. A library is a place ______ we can borrow books.
7. Is that the reason ______ you didn’t take the exam？
8. Do you know the date ______ Lincoln was bon？

【推荐2】His teacher doesn't understand__________he was not as careful as usual during the exam. (用适当单词填空)

【推荐3】He did__________he could to help his father on the farm. （用适当的词填空）