15. _______ all the inventions have in common is _____they have succeeded.A. What; what B. That; that C. What; that D That; what
I wonder how he _____ that to the teacher.
—Did the book give you the information you needed? —Yes. But it, I had to read the entire book.
—I’m sorry I stepped on your foot; it was an accident. —It wasn’t! You did it purpose.
Forgive him, please. I don’t think he broke your rule .
—Why is he absent today? —It is he is sick.