_________ to education , she spent much time communicating with the students and their parents.
A. Devoted B. Devoting C. Having devoted D. Devote
The experiment done by Tomlinson _______successful.
A. proves B. was proved C. is proved D. prove
He is always full of ______ as if he never knew tiredness.
A. strength B. force C. energy D. spirit
The bag has lots of things in it, ______ an old dictionary.
A. containing B. showing C. holding D. including
I was about to tell everyone the truth ______ she turned up.
A. while B .when C. as D .till
Helen is on time for everything. How ______ it be that she was late for such an important interview?
A. might B. can C. must D. may
