1. I don"t know if to help him or not. ________ 2. She can"t help cleaning the house because she"s busy making a cake. ________ 3. We all hope you to make rapid progress. ________ 4. The results of the research are to publish soon. ________ 5. It is too heavy for me to lift it. ________ 6. It"s awfully good for you to come and meet us. ________ 7. These are very good books for your children to be read. ________ 8. He did what he could help me with my physics. ________ 9. Let"s find a big bag to put the things. ________ 10. It would be easier to climb over the mountain than going round the valley. ________