She devoted herself _____to her research and it earned her a great reputation in her field [ ]

I’m just wondering ______ I first met Tom.

-Why does your brother _________ play basketball–- Because he does not have much free time to play it.

I don’t remember how many years ago ______________I paid my last visit to the principle of my primary school

Did youmeet with the famous star—______ Ihad come here earlier.