Walking in the mountain at night can be very dangerous. You can't be ________ careful.
A.so B.very C.much D.too
If my friends have any problems, my door is ______ open to them.
A. never B. seldom C. sometimes D. always
We'll have to say goodbye, my dear friends! But I will forget the days we spent together.
A.always B.often C.never D.usually
You should think ________ before accepting a job, and don't do it just for fun.
A.closely B.seriously C.proudly D.happily
The flight to Beijing has to be put off because it's snowing ________.
A.softly B.heavily C.noisily D.safely
We had a football match yesterday. Our fans cheered us on ________.
A.slowly B.loudly C.freely D.simply
