10. If he (to work) hard, he I would have achieved great progress. 11. If it is not too cold, I (not to put) on my coat. 12. I (to write) the composition long ago if you had not disturbed me. 13. If he (not to read) so much, he would not be so clever. 14. If my friend (to be) at home, he will tell us what to do. we shall