We must find out the professor is coming， so we can book a room for him．（ ）
A．howB．whyC．whenD．where
Oh，my god!I've left my keys in the room．I'll have to get in_____ the window．
It's dangerous．You'd better wait for your mom to come back．（ ）
A．pastB．overC．acrossD．through
Hi，Mr．Zhang，do you often come here to climb the mountain？
Yes，_____ exercise．You see，I'm healthier than before．（ ）
A．to getB．gettingC．getD．gets
What will the weather be like tomorrow？
It_____ be rainy，cloudy or sunny．I'm not sure．（ ）
A．mustB．shouldC．can'tD．might
As China grows stronger and stronger，Chinese _____ in more and more schools out of our country．
That's true．As a Chinese，I feel very proud．（ ）
A．teachesB．has taughtC．is taughtD．was taught
Could you show me the method of cooking the tasty cookies？
Please follow the ______ on the cookbook．（ ）
A．directionB．attention
C．introductionD．instruction