________ astronauts cannot go to a baseball game or a movie in orbit , there are many familiar activities that they can still enjoy.
A. While B. Since C. Before D. Unless
--- Is there anything wrong , Tom ? You look upset .
---Oh, nothing . In fact , I ______ the coming National College Entrance Examination
A. have just thought of B. was just thinking of
C. will just be thinking of D. would just think of
The European Union universities are _______ most attractive because they have ______ diversity of cultures and teaching methods.
A. the , a B. a , a C. a , the D. the , the
--- Thank you for the flowers
--- _______ . I thought they might cheer you up .
A. That’s right B. All right
C. I’m all right D. It’s all right
Cheer up! Never let your failures _____ trying harder.
A. put you through B. put you off C. put you across D. put you away
— What was the trouble with you the day before yesterday?
— When I practiced running, my strength _____ and I fell onto the ground.
A. gave away B. gave in C. gave off D. gave out
