Choose the most suitable word or phrase in each sentence.
1) janet went out (so that sher bought / to buy) Hary a present
2)Let's check once more(for being/so as to be)sure 
3)we are saving money so as (to please/pleasing/please)their friends
4)he harried up to the station (so as not to / not to) miss the train 
5)He locked the door (so that nobody could /in order not to )disturb him
6)She said nothing (in order not to/ not to )make him angry 
7) I'll write to Mai ( to/for/so that )invite her to my birthday party 
8) I opened my book in ( as / so/ order ) to read
9) We hurried to school so ( order / as / to) not to be late 
10)He always drives carefully in order to ( causing / cause ) accidents