Complete each sentence with the correct verb forms of the verbs. (Hoàn thành mỗi câu với các dạng động từ chính xác của các động từ.)

1. Shen Nong (invent) tea when he (watch) his servants boil water.

Work in groups. Complete the following questions where necessary. Ask each other. (Làm việc nhóm. Hoàn thành các câu hỏi sau nếu cần. Hỏi thăm lẫn nhau.)

1. What were you doing at 7.00 p.m. yesterday?

Complete the beginnings of the story using the Past Simple or the Past Continuous form of the verbs in brackets. (Hoàn thành phần đầu của câu chuyện bằng thì Quá khứ Đơn hoặc Quá khứ Tiếp diễn của các động từ trong ngoặc.)

It was a terrible stormy night six months after my father's death. My mother was sitting (1. sit) alone by the fire, waiting for her baby to arrive. She (2. feel) sad and ill. Suddenly she (3. hear) a noise outside. “There's someone at the door, Peggotty” my mother (4. call). “Who is it?” Peggotty was her servant and her only real friend. “I'll go and see” Peggotty (5. reply). She (6. go) and (7. open) the door.

He (read) an electronic book when he (hear) a loud noise.

There (be) something wrong with the desktop computer when I (download) the new software.

2. What were you doing when you first / last … ?