27. ---Ken, why do you look so tired? ---I _____ myself _____ the climate since I came here.
Taxi _____ was raised again because the price of oil was higher than before.
I have _____ my husband again and again not to smoke, but I can’t _____ him.
—Would you like some coffee? —Yes, and please get me some milk, too. I prefer coffee _____ milk.
Although she is considered as a great writer, _____.
It is very difficult to _____ the meaning of a word without a context.