1. Rearrange the given words or phrases to make meaningful sentences .
1 found / scientists / move / other / to / ways/ make/ robots/ have/.

=> scientist have found other ways to make robots move
2 for/ on/ because/ legs / requires/ is/ difficult/ robots/ it balance/ two/.

=>robot requires 2 legs because it is difficult for it balance
3 walk/ why/ is/ it/ difficult/ legs/ robots/ for / on/ to / two/. 
=> why is it difficult for robots to walk on two legs 
 Noise/ plane / can/ make / lot / engine / a / a / of /.=> a plane engine can make a lot of noise 
5 is / for / us / to / it /Moon/ explore / the /  important /. => it is important for us to explore the moon
  2. Finish each of the following sentwnces so that its meaning stays dthe same .
1. I think he can speak Japanese verry well .
   I think he is .................... very well . ( câu này mình chưa nghĩ ra vì nó có vẻ khá vô lĩ )
2. Despite being unable to swim himself , John is keen that his children should learn. 
    Although...john can't swim by himself he is keen.........
3 we intend to buy a teaching robot to teach my soon at home .
    We  plant ...to buy a teaching robot to teach my soon at home