单项选择题
They stood chatting together as easily and naturally as（）.
A．it could beB．could beC．it wasD．was
单项选择题 Which of the following is INCORRECT
单项选择题 When you have finished with that book, don't forget to put it back on my desk, ______
单项选择题 Men differ from animals ______ they can think and speak.
