—Someone wants you on the phone.—________ nobody knows I am here.

It is ________ the pupils do in their spare time ________ really prepares them to take their place in society as citizens when they grow up.

Then I have learned there are a lot of troubles in our lives, but the problem is __________ they control you or you control them.

 Having checked the doors were closed, and ________ all the lights were off, the boy opened the door to his bedroom.

____ I'm mistaken, I've seen that tall man at a party before.