In 18-minute address to students across America on September 8, 2009, President Obama told American students to make most of their education.
After her son gave his life for the country, Sally was well provided____________.
--What are you doing this weekend? --I haven't decided yet. ____________? --Well, I thought we could have another family party.
I don't remember___________ to the airport that year.
A man does not know the difficulty of anything_________ he does it personally.
Isn't it very kind __________ your parents to do that for us? A. for B to C. about D. of