( ) 内の助動詞を適当な語句にかえなさい。 内
] Someday robots wil (can) do housework Hike cleaning and cooking.
2. mm the past women (must) spend a lot Qf time cleaning and cooking.
3. Some people thought it (may) be a great invention of the century.
4。 When hey saw AsrroBoy for the frst me。 hey thought they (can) make the
same kind of robotS Soon.
5。 We now know We wil (must) spend much more tme making such a robot.
