The respectable neurologist committed all his life _________ people with Alzheimer’s and finally, he made it to _________ a supporting center for them.

Once we have________some knowledge, things do notbecome more difficult, but comprehensible.

下面哪个短语用于讲故事的开头比较合适

Do you often watch TV –Yes, I spend lots of time it, It’s interesting.

That was _____ time when girl’s education was always placed ____ second to boy’s.