Hi!

Some vocabulary and reading practice can always help:

People: 1, 2, 3
Complete with a suitable preposition: 1, 2, 3
Articles: a/an/the/ - : 1, 2
Prefixes: 1, 2, 3, 4
Suffixes: 1, 2, 3, 4
Compound nouns: 1, 2
Put this Application Letter in order.
Finally, you can have a look at some magazines.