Which of------- texbooks is yours?The area of Shanghai is la

Which of------- texbooks is yours?The area of Shanghai is larger than ------of Suzhou.
还有
A.this B.that C.these
A.this B.those C.that D.it
The bicycles made in Tianjin are much better than-------made in Beijing.
A.that B.those C.these D.the one
-----will spend the summer vacation in Qingdao.
A.He,you and I B.You,he and I C.I,you and he D.I,he and you
Take care of----.
A.yourself B.you c.me D.ourselves