After ________ absence of 10 years from his hometown, Mr. Li doesn’t know ________ great changes have taken place there.
With much work ________unsettled,the newlyselected president will have a hard time.
He was sitting on the floor ________ by books.
The weather turned out to be fine yesterday. I ________ the trouble to carry my umbrella with me.
My father may have to go into hospital,________ he won't be going on holiday.
Teenagers who discover they were ________ often search for their biological parents when they are old enough.