Boys, don’t lose____ in playing Angry Birds. It is bad for your eyes to play computer games for a long time.
He used _______short, but he is tall now. A. to beB. toC. is
It took me _______ hour to finish my homework. A.a B. an C. the
My mother_________500 yuan_______the bike.
I'd like to know __________or not.
We arrived _______the farm ______ a Tuesday morning .