Question

i haven't seen him _____  ages 
1)for 
2)since 
3)during
4)of
we mustn't ___ things which can be used again or recycled 
1)collect
2)pick up
3)catch
4)throw away
if i ____ you were ill, i would visit you
1)know2)had known3)knew4)known

Answer 1

1)for
2)throw away
3)knew