=>

1. We were having dinner when telephone rang.

2. The internet changes the way we communicate.

3.  We spent two hour reparing the windows yesterday.

4. He detests joining social activities because he is introvert.

5. The Hani people live in Lai Chau and Lao Cai

1. We / have /dinner / when/ telephone / ring

=> We were having dinner when the telephone rang. 

2. Internet / change / way / we / communicate

=> The Internet changes the way we communicate.

3. We / spend / two / hour / repair / windows / yesterday

=> We spent two hours repairing the windows yesterday. 

4. He/ detest / join / social activities / because / he / be / introvert

=> He detests joining social activities because he is introvert.

5. Hani people / live / Lai Chau /Lao Cai

=> The Hani people live in Lai Chau and Lao Cai.