They use the same senses as we do and their feet and hands are similar toours, chimpanzees still have opposable toes and can grasp things with their feet.
Teachers have to constantly update their knowledge in order to maintain their professional ____.
You must have read about Mark Twain long ago, ____?
Everyone doesn't agree to the plan. Some support it while I'm one of ___ opposed to it.
Tom, behave yourself! If you keep on doing that, you'll ____ in serious trouble.
I would like to buy some good English reference books, but _______ was available from the bookstore, where I only found some Chinese ones.