He proposed to her in 2015.
+
Do you believe in love on first sight?
Do you believe in love AT first sight?
I read something very interesting in the newspaper last week.
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I have never been to England.
+
You have study for your exam! It's tomorrow.
- have to
Once in a while I speak to my boss - maybe once a month
+
She is thinking that hard work is the key to success.
- thinks
I can't stand to be near people who smoke cigarettes.
- being
She worrys too much about the exam.
- worries
Ask me! I am knowing the answer!
- I know