أرجو الاجابة مع توضيح السبب

[mido02]

1-
?Do you know the date .............we have to hand in this essay
where
whom
inwhich
when
2-
HE .....................hard since2004
has trained
has been training

3- add question tag
a)
the food that is sprayed with chemicals isn't good for you
You aren't ssuggesting we use chemical fetilizers
C)