. Both bread and butter ______ on sale in this shop.

President Obama has two daughters, _____ able to fit in well with their citizens.

Mike, together with his parents, ________ going to the countryside to see his grandparents next week.

-- Look at the trainers, Andy. They look like yours.--No. Mine             black and white.

Listening attentively in class and reviewing in time _______ a sure way to improve your learning, and this is especially true _______ it comes to standard tests.