Infinitive and gerund

I remember ... the Queen in London.
1. to meet
2. meeting
Did you remember ... my letter today?
1. to post
2. posting
John said he remembers ... the newspaper, but now he can't find it.
1. to buy
2. buying
I used ..., but I gave it up.
1. to smoke
2. to smoking
I'm not used ... up so early.
1. to get
2. to getting
I wanted to stop ... some presents, but we didn't have enough time.
1. to buy
2. buying
They stopped ... a rest before they continued their journey.
1. to have
2. having
She stopped ... to the gym after she had got back into shape.
1. to go
2. going
They tried ... the door, but it was stuck.
1. to open
2. opening
You should try ... your own clothes. It's much cheaper.
1. to make
2. making
The plants need ...
1. to water
2. watering
You need ... more.
1. to eat
2. eating