Word formation
The ... (instruct) in this manual are hard to understand.
instructions
Past Simple, Past Participle and meaning of be.
was/were, been, ser o estar
The ... (discover) of new planets is made possible by telescopes.
discovery
Past Simple, Past Participle and meaning of become.
Was Steve Jobs the ... (invent) of the iPhone?
inventor
Past Simple, Past Participle and meaning of drink.
drank, drunk, beber
Have you seen the ... (respond) that I wrote to your blog?
response
Past Simple, Past Participle and meaning of write.
wrote, written, escribir
My driving ... (instruct) says that I'm almost ready for my test.
instructor
Past Simple, Past Participle and meaning of catch.
caught, caught, coger