What were considered to be unfortunate?

A. Having met her before, I still remember that.

B. Having meet her before, I still remember that.

C. Having met her before, I still remembered that.

D. Having to met her before, I still remember that.

A. achievement

D. transportation

B. have read

C. have been reading

D. had read

A. becomes

B. become

C. becoming

D. became

B. have been studying

D. study

B. Have made

C. Having make

D. Having made

A. Trang An Scenic Landscape Complex is the eighth World Heritage Site in Vietnam to have been recognised by UNESCO.

B. Trang An Scenic Landscape Complex is the eighth World Heritage Site in Vietnam to has been recognised by UNESCO.

C. Trang An Scenic Landscape Complex is the eighth World Heritage Site in Vietnam to ave been recognised by UNESCO.

D. Trang An Scenic Landscape Complex is the eighth World Heritage Site in Vietnam to have recognised by UNESCO.