9. Many old people have very little _______________with modern technology. (acquaint)
10. The students are still ____________of working by themselves, so I must help until they are able to. (capable)
11. The weather is very ___________at this time of the year: the sun may shine brightly and then it may suddenly rain heavily.
12. It would be considered _____________to your friend if you told his or her secret to others. (loyal)