Brain is new here, _______ he has few friends.  

Teenagers would rather_____ secrets with friends than _____ about them with parents.

I really enjoyed your speech, ______ there were some parts I didn’t quite understand. 

Mr. Zhou was really anxious _____he can’t find his car. 

I have __ a raincoat _____ an umbrella. That’s why I have to wait until the rain stops.