1.As a senior professor she should have known better -----to

1.As a senior professor she should have known better _____to get involved in such a scandal.A and not B but not C than D than not 2.It is easy to pay lip service to the idea of equality for women,but in practice this is often___________.A difficult to achieve it B difficultly achieved.C difficult to achieveD difficultly achieving.3.it turned out that the project required 2 billion more than ___________.a.has been investedb.it has been put in itc.have been invested ind.it have been put in it