— How about dinner tonight? It's on me.
— ______ .
A. You are welcome B. Oh, I'd like to
C. Well, I'm afraid so D. That's all right
She ______ someone, so I nodded to her and went away.
A. phoned B. had phoned
C. was phoning D. has phoned
I'll be out for some time. ______ anything important happens, call me up immediately.
A. In case B. As if
C. Even though D. Now that
— I hope to take the computer course.
— Good idea. ____ more about it, visit this website.
A. To find out B. Finding out
C. To be finding out D. Having found out
I still remember my happy childhood when my mother ______ take me to Disneyland at weekends.
A. might B. must C. would D. should
The manager was satisfied to see many new products ______ after great effort.
A. having developed B. to develop
C. developed D. develop
