Help ____ to the chicken, Tom and Jim.—Thank you.

Last summer holidays, he went to the countryside and worked together with farmersIn this wayhe learnt________from farmers [ ]

___genes,intelligence also dependson an adequate diet,a good education and a decent home environment.[ ]

you go to the cinema lastnight— Well, I had _______ to, but it was rainingtoo hard.

The eighteenth and nineteenth centuries _____ the widespread use of electricity and the birth of the steam engine , leading to the development of factories and cities.