______ the parcel, he was surprised at what he saw.
A.Opening
B.Have opened
C.When opened
D.To open

I’m really looking forward _______ to university.
A.to go
B.
C.
D.go

If I _______ you were sick, I would have called sooner.
A.know
B.would have known
C.had known
D.knew

There’s ...... waiting outside to see you. She didn’t tell me her name.
A.anyone
B.someone
C.no one
D.everyone

If you walk on the stress before Tet, you’ll find great _______ everywhere.
A.excitement
B.exciting
C.excited
D.excitedly

__ ____ you change your mind, I won't be able to help you.
A.Because
B.Provide
C.Unless
D.If only

A lot of things ______ to the house before we can move in.
A.need be doing
B.need to do
C.need being done
D.need to be done

______ Christmas Eve, people often have parties late at midnight.
A.For
B.In
C.On
D.At

______ in some developing countries may be the cause of poverty and hunger.
A.Literacy
B.Overpopulation
C.Modernization
D.Pollution

Big cities like New York and Tokyo are ______ populated.
A.closely
B.densely
C.variously
D.greatly