--What a clean kitchen!--Yes, and it _____ by my mother every Saturday.A. cleans B. is cleaned C. has cleaned
I wonder_____ they will pass the exams or not.
The light______ by Edison is helpful for people.
—________do you practice your pronunciation? —I practice it _____ asking the teacher for help.
----Can you explain ______________________________, especially my writing? ----Of course. It’s my pleasure.
----It’s a wise _______ to wear a white tie. It matches your new suit well. ----Thank you very much.