急&初中英语:根据句意及首字母提示补全单词

急&初中英语:根据句意及首字母提示补全单词
1 He has the a_________ of a steady job.
2 E-books first a__________ in the 1990s and have made great improvements in technology .
3 With the rapid p_________ of electronic technology,the e-book will become more convenient and cheaper.
4 Will books be r________ by computers one day?