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
问题描述：
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 achieve
D difficultly achieving.
3.it turned out that the project required 2 billion more than ___________.
a.has been invested
b.it has been put in it
c.have been invested in
d.it have been put in it
答
1。C
should have known 是本应该知道的意思，better 是比较级，和than连用
2。C achieve 是及物动词，sth. is difficult to do 的结构
3。A
答
1.C know better than to do 意思为指导不宜做某事
2.C achieve 是及物动词,sth.is difficult to do 的结构
3.A than 相当于定语从句的that