A.bluefin tuna sashimi is not very popular
B.bluefin tuna are extinct
C.bluefin tuna has become expensive and rare
D.people liked canned or cooked tuna more

A.It is possible to breed tuna in land-based tanks
B.Worldwide stocks of tuna have decreased
C.Canned tuna is mostly made of skipjack tuna
D.There are only few species of tuna in the world

A.old
B.young
C.fresh
D.strong

A.Tuna overfishing has stopped due to repeated warnings.
B.Nothing can be done to help the wild tuna survive.
C.To recover stocks of tuna, we should be aware of what species of tuna we are eating.
D.Raising juvenile tuna is only one measure to save the wild tuna.

A.successive
B.film directors
C.former
D.their

A.successive
B.film directors
C.former
D.their

A.interested
B.which
C.at
D.last Sunday

A.Ann's mother would rather she doesn't go out with him.
B.Ann's mother would rather her not to go out with him.
C.Ann's mother would rather she didn't go out with him.
D.Ann's mother would rather she wouldn't go out with him.

A.Not many people went to see the play because they didn't receive its notices.
B.Although the play was good, not many people went to see it.
C.Not many people went to see the play in spite of its good quality
D.Despite the play's good notices, not many people went to see it.

A.Can the way to reach the city centre be chose?
B.Is this the only way to reach the city centre?
C.Is the other way to reach the city centre marked?
D.Can the way to reach the city centre be changed?