Good care must （ ） babies particularly while they are ill.
（A）take
（B）take of
（C）be taken
（D）be taken of
The reporter said that the UFO （ ） east to west when he saw it.
（A）was traveling
（B）traveled
（C）had been traveling
（D）has traveled
In the near future, more advances in the robot technology （ ） by science.
（A）are making
（B）are made
（C）will make
（D）will be made
