1. It/ difficult/ learn/ Japanese.............................................................................................
2. We/ delighted/ get/ your letter/ yesterday.........................................................................
3. It/ not easy/ answer/ these questions...................................................................................
4. Your writing/ difficult/ read.............................................................................................
5. I/ surprised/ see/ Tom/ the party/ last night........................................................................
6. It/ impossible/ understand/ his theory................................................................................
7. They/ ready/ start/ now......................................................................................................
8. It/ interesting/ see/ that film................................................................................................