—You see, I’m poor in physics and you are not good at chemistry, and…… — That’s _______ we should help each other.A. when B where C. how D. what
She ______ someone, so I nodded to her and went away.
I'll be out for some time. ______ anything important happens, call me up immediately.
— I hope to take the computer course. — Good idea. ____ more about it, visit this website.
I still remember my happy childhood when my mother ______ take me to Disneyland at weekends.
The manager was satisfied to see many new products ______ after great effort.