Complete these sentences using new lexis 1)my assistant is checking the ... and ... letters and documents 2)I recommended you to ... before making payment . 3)I ... recruiting and training staff. 4)The boss asked me to remind our customers about their ... . 5)I am sending you ... for the previous month.

Nina has been learning English for 2 years.
The birds have already flown to the South.
They have known him for many years.
Mike has forgotten to learn the poem.
The children have been watching cartoons for 2 hours.
The train has just come.
We haven’t had a holiday for 5 years.
She has been teaching at this school for twenty years.
David has been painting in his studio since 10 o’clock.
Mary and Sam have been collecting stamps for 3 years.
Their parents have been friends since their childhood.
Dave has been a student for 2 years.