Don't you know what happened_________the people who went on holiday with us?
A.to
B.with
C.for
D.at

Spain_________once a very powerful country.
A.was
B.is
C.used to
D.has been

Everything_________turned out to be imaginary.
A.she said it
B.she said
C.which she said it
D.that said

I_________like that dress. It's really nice.
A.do
B.very
C.am
D.have

We hope to have the law _________by December.
A.pass
B.to pass
C.passing
D.passed

Although I was very tired, _________.
A.but I helped to clear up the mess after the party
B.I helped to clear up the mess after the party
C.and I tried to clear up the mess after the party
D.I didn't help to clear up the mess after the party

I took off my shoes before entering the room _________.
A.in order to not dirty the floor
B.so that I not dirty the floor
C.in order not dirtying the floor
D.so as not to dirty the floor

The living conditions of the population _________in the past years.
A.has been improved
B.have been improved
C.improved
D.were improved

_________these plants regularly or they will die.
A.Water
B.If you water
C.Unless you water
D.Because you water

The government has classified 54 species of mammal and 60 species of birds in Vietnam today as being endangered.
A.has classified
B.mammal
C.birds
D.being endangered