—Mum, ________my teacher, Miss Li.—Nice to meet you.
I________,but I didn’t________anything.
I don’t remember________the book yesterday.
—Mum,it’s late.Why are you still here?—Dad hasn’t come back yet.I________for him.A.am waitingB.was waitingC.waited
They have fun________their homework all the time.
Thanks for helping me________out that problem.