A computer can help us to______ with people around the world.
A.interact
B.contact
C.transmit
D.respond

The lesson was very difficult. Nobody could understand it. It was _______that nobody could understand it.
A.the lesson so difficult
B.the lesson such difficult
C.such a difficult lesson
D.so a difficult lesson

The university has an international_______ as a center of excellent.
A.experience
B.academy
C.reputation
D.scenery

Be careful or you may get lost and run out of money.” She said.
A.She advised me to be careful or I might get lost and run out of money.
B.She warned me to be careful or I had to get lost and run out of money.
C.She ordered me to be careful and I might get lost and run out of money.
D.She told me to be careful if I got lost and run out of the money.

Mary was very disappointed. However, she tried to keep calm.
A.Mary was too disappointed to keep calm.
B.Mary lost her temper because of her disappointment.
C.Disappointed as she was, Mary tried to keep calm.
D.Feeling disappointed, Mary tried to keep calm, but she failed.

According to the passage, before the nineteenth century, artisans were thought to be ________.
A.defenders of moral standards
B.creators of cheap merchandise
C.skilled workers 
D.talented artists

(25) ________
A.need
B.order                         
C.time                           
D.shape

There are billions of stars in______­­­­­___ space.
A.a
B.an
C.the
D.x

We couldn't go on a picnic as planned _____it was raining hard.
A.however
B.but
C.because
D.so

The train from Madrid arrives ________noon.
A.over
B.on
C.in
D.at