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Giúp mik câu 47,48,49,50

You look so depressed.You look_____________you didn't have a friend in the world.

A.as if        B.if only      C.even if     D.although

A person that you make friends with by writing letter is called a_________.

A.co-operator       B.cousin      C.close friend       D.penpal

Somebody repaired her car yesterday.

A.She had her car repair yesterday.           B.She has her car repaired yesterday.

C.She had her car to repair yesterday.           D.She had her car repaired yesterday.

Maryam was really impressed by the________of the city.

A.beautiful  B.beauty       C.beautifully      D.beautify

Do you remember the lady?Her daughter won the competition yesterday.

A.Do you remember the lady who daughter won the competition yesterday?

B.Do you remember the lady the daughter of which won the competition yesterday?

C.Do you remember the lady that won the competition yesterday?

D.Do you remember the lady whose daughter won the competition yesterday?

We didn't go on holiday.We did not have enough money.

A.We would have gone on holiday if we had enough money.

B.If we had had enough money,we would have gone on holiday.

C.We would have enough money if we went on holiday.

D.We had enough money,we would go on holiday.

They haven't___________an AIDS vaccine.

a.yet developed  b.developed yet

c.developed already    d.already developed