4.
b.) I never eat Chinese food before.
c.) It's Tony's first trip to Paris.
d.) It's been a lot since I went swimming.
e.) Mary has learnt French for five years.
f.) So far I wrote ten pages of this letter.
g.) They have been married for more than twenty years.
h.)I haven't seen Dick since 1995.
I.) Lately your work has been definite improved.
J.) This is the second time, that I visited Hungary.