5. It is certain that the mystery of Tutankhamun’s tomb has never been fully explained.

　 　　▲　 　is certain 　　▲　 　that the mystery of Tutankhamun’s tomb has never been fully explained.

4. The students insist on being given free time on weekends, but their parents think differently.

　　 The students insist that they 　　▲　 　　　▲　 　free time on weekends, but their parents think differently.

3. Just as we wanted to turn off the lights and go to sleep, there was a sudden knock on the door.

　　 We were 　　▲　 　to turn off the lights and go to sleep 　　▲　 　there was a sudden knock on the door.

2. Howard Carter’s team found the bomb of Tutankhamun, and 21 people of them died after they entered the tomb.

　 Howard Carter’s team found the bomb of Tutankhamun, 21 people 　　▲　 　　　▲　 　died after they entered the tomb.

请在空格处填上合适的词，使上下两个句子意思保持一致。

1. As soon as I arrived in the UK, I found school life there was quite different.

　 　　▲　 　　　▲　 　in the UK, I found school life there was quite different.

5. After graduation, we made it a rule that we should phone each other r　 ▲　 　to keep in

touch.

4. The boy’s p　 ▲　 　look means he doesn’t understand the maths problem.

3. It is known to all that the Forbidden City is s　 ▲　 　by the city moat (护城河).

2. People all over the world have realized the importance of living in h　 ▲　 　with animals

and protecting the environment.