求英语高手来,空格填介词和副词 1

1 She is a woman who likes to have children__about/around______ her
2.You can't expect to succeed if you attempt tasks_beyond____ your ability.
3.You may try to do things _regardless of_____your ability and get hurt.
4.As she was turning out some papers,she came__across____the letter she had been looking for for ages.
5.When I came___across___him the other day,I was slightly embarrassed as I once mistook him for a film star.
6.The aim of this survey is to separate effects __from___causes,which are sometimes political.
7.The person can transfer from wheelchair to seat__with___ relative ease.
8.It struck me __as____a bit strange that he offered nothing new in this morning's report.
9.I've seen them all and they strike me __as___perfectly ordinary honest citizens.
10.Success in international trade is largely based on good quality products delivered _on___ time and at the right price.