Sentence building

----- Nội dung dịch tự động từ ảnh -----
II. Sentence building.
1. It/ difficult/ do/ this Math exercise
->....
2.1/ surprised/ see/ Paul/ the party/ last night.
->.
3.It/ impossible/ understand/ his theory.
->...
4.They/ ready/ start/ now
->....
5. We/ delighted/ get/ your letter/ yesterday.
->..
6. He/ go out /8 o'clock /yesterday.
->..
7. Nam / play / games /8 o'clock /yesterday.
->
8. The old lamp/ make/ in China /5 dollars.
->
9. The girl/ play/ the piano/ Mai.
->..
10. The ruler / make /of plastic / nice.
->...