There are two _______ students on the play ground

There are ______ Russian（s) and ______ American（s) on board.A．one, oneB．one, twoC．two, two

On Sundays there are a lot of children playing in the park, ______ parents seated together

Such______the case, there are no grounds to justify your complaints.A．has beenB．isC．areD．b

There ______two books and a bag on the desk.A、hasB、haveC、isD、are

If there are questions the students will_________

Look! There _______ playing with the tourists on Yinhe Square.