1.   Travelling by plane is much __________ than travelling by train. (expensive)

2.   Do you think Mona is __________ girl in our class? (pretty)

3.   This robot is __________ at playing the piano than that robot. (bad)

4.   The company have shown off __________ generation of its robot at a national robot show in Ha Noi. (late)

5.   I think we need a ___________ robot than this one. (fast)

6.   This is ____________ smartwatch we've ever produced. (thin)

7.   The use of robots in housework makes people _________. (lazy)

8.   This cleaning robot produces _________ noise than the one we bought last month. (little)

9.   I don't like this robot because it's _______________ robot I've ever seen. (hi-tech)

10. We have used _________________ technology to make this robot. (modern)