—What’re those over there?—Oh, Some enemies ________ now.
— You’re new here, ______?— Yes, I’m from Dujiangyan. I came here last week.
I am not sure if Tom____ home. If he________, I'll call you.
It_______ me 15 minutes to get to school on my bike.
------Why are you so________?-------I am watching an_______ basketball match.
The math problem is too difficult ,I can’t__________ .