----- 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. ->...