英语单选4. I play bridge ____you do .A.no better thanB. rather b

英语单选
4. I play bridge ____you do .
A.no better than
B. rather better than

5. Could I borrow your dictionary?
i would get it for you ____I could remember who last borrowed it.
A.only if B. if only

6 They are seeking to ____the most advanced technological levels in the world,
A attain B obtain C gain D arrive to

请选择,并解析 .十分感谢!