1. Sử dụng thì Quá khứ đơn và quá khứ tiếp diễn để điền vào chỗ trống
1.1. While Tom ……………...(read) , Amely………………. (watch) a documentary on TV.
1.2. Marvin……………….. (come) home,........................... (switch) on the computer and…………………….. (check) his emails.
1.3. The thief …………………. (sneak) into the house, ......................... (steal) the jewels and ………………. (leave) without a trace.
1.4. Nobody………………….(listen) while the teacher…………………. (explain) the tenses.
1.5. While we…….…………………...(do) a sight-seeing tour, our friends………………... (lie) on the beach.
1. While Tom (read) was reading , Amely (watch) was watching a documentary on TV.
2. Marvin (come) came home, (switch) switched on the computer and (check) his emails.
3. The thief (sneak) sneaked into the house, (steal) stole the jewels and (leave) without a trace.
4. Nobody (listen) was listening while the teacher (explain) was explaining the tenses.
5. While we (do) were doing a sight-seeing tour, our friends (lie) were lied on the beach.