Last night, Bob made a call to me, ______sorry for his absence from my wedding ceremony.A say B. sayingC. said D. to have said
He is very popular among his students as he always tries to make them ____ in his lectures.
I'm afraid I'm not ___ to help with the show, for I am fully occupied with my own project
—Should I lock the lab before I go home? —__.I'll check it myself later.
Thanks to our ___ schedule, we got our task accomplished ahead of time.
—Have you heard that he was admitted into Beijing University? —Is that true? And I'm glad that his efforts at last ___.