—What’s wrong with you, Eric? You look tired—I _______ to prepare for the final exam last night.
He devoted his lifetime _____ it possible for women _____ better education.
—She didn’t make ______ great progress,did she? _______,although she did her best.
---Peter,is there anything else you want to know about China? ---Yes,I am still wondering __________ .
He was brave enough _________ for the school volleyball team and succeeded.
---We’d better invite Jim and Jack to the party tonight. ---Yes, _____? I’ll give them a call right now.