I think Maths is ________ of all my subjects.
| A．much difficult one | B．difficult one |
| C．most difficult one | D．the most difficult one |
Thanks __ helping me, Jim.
| A．of | B．to | C．at | D．for |
Is Emma your ____?
| A．brother | B．father | C．sister | D．uncle |
一Is this man your friend?
一Yes，．
| A．it is | B．it isn’t | C．he is | D．he isn’t |
--Can you tell me where he is?
--Sorry, __
| A．I can | B．I don’t know | C．I know | D．I don’t |
-- __ behind the door?
--No, they aren't.
| A．Where are | B．What's | C．Are those keys | D．Is the key |