—What is she doing over there？
—She is waiting for her kid________home for dinner．
A．go
B．to go
C．going
D．to going
I________，but I didn’t________anything．
A．listened；listen
B．heard；hear
C．heard；listen
D．listened；hear
I don’t remember________the book yesterday．
A．where I put
B．where did I put
C．where will I put
D．where I will put
—Mum，it’s late．Why are you still here？
—Dad hasn’t come back yet．I________for him．
A．am waiting
B．was waiting
C．waited
They have fun________their homework all the time．
A．do
B．to do
C．doing
D．to doing
Thanks for helping me________out that problem．
A．work
B．working
C．works
D．to working
