P. 24
o
Read the sentences below and circle the correct linking word.
1
Smart houses save energy. ___________, they make life easier.
2
They are useful. ___________, they can be expensive to install.
3
They provide security. ___________, some devices are easy to hack.
4
It is easy to control home appliances remotely. ___________, smart houses help people save time.
5
They make daily life easier. ___________, some people think they are difficult to use.