______ his father and stepfather were Muslim, American newly-elected black president, Barack Obama is Christian.
1 won’t call you, ________ something unexpected happens.
The manager suggested an earlier date ____________ the meeting.
I _____ it as a basic principle of the company that suppliers of raw materials should be given a fair price for their products.
Small sailboats can easily turn over in the water ______ they are not managed carefully.
. Leaves are found on all kinds of trees, but they differ greatly ________ size and shape.