III. Complete the sentences with the given words in their proper forms.
1. The penfriends chatted
happily
in English on Twitter. (happy)
2. Some kids often
complain
about too much schoolwork. (complaint)
3. The
length
of Hong Kong-Zhuhai-Macao Bridge is 55 km. (long)
4. The Internet contains
various
knowledge and information. (variety)
5. What are the
advantages
of bringing smart phones to school? (advantage)
6. The Party celebrated her
hundredth
birthday on 1 July 2021. (hundred)
7. The kids are trying
their
best to prepare for the entrance exam. (they)