Tennis can exercise all of our muscles （肌肉）． And it requires ________ to spend time with others． This is good for our health too． （ ）
A．oursB．usC．we
Could you please tell me（ ）
A．where is the Grand Hotel
B．when the Grand Hotel is
C．where the Grand Hotel is
D．how is the Grand Hotel
﹣I'm sorry，dad．I lost that wallet you gave me．
﹣______．（ ）
A．The same to youB．It's my pleasure．
C．Nice to see youD．Well，never mind
If we _____ take environmental problems seriously，the earth _______ worse and worse．（ ）
A．don't； won't beB．won't； isn't
C．won't； isD．don't； will be
Which of the following signs means that you can go out here？（ ）
A．
B．
C．
D．
We talked about _____ new words．（ ）
A．learnB．learnedC．learningD．to learn