He always did well at school ______ having to do part-time jobs every now and then.
The key _________ the string was put into the door to stop the kite _________.
_________ that he had fallen behind,he tried to work harder.
Plastic and rubber won’t _________ electricity,but copper will.
________ no need for everybody to discuss the problem again since it has already been solved.
I didn't like aunt Lucy,who __________ without warning and bringing us presents.