study hard,_______ you will get better grade.A.or B.and C.be

study hard,_______ you will get better grade.A.or B.and C.because D.but
the rest of the students ______ not allowed to leave the classroom at that time.
A.are B.have C.was D.were
he used to be afraid of snakes.how about you?——so _____i.
A.did B.have C.was D.do
there are _______ trees on that mountain.
A.two millions B.two million of C.million of D.millions of
It was sunday.the train was crowed.a gentleman was trying to look for a place.in one of the cars he saw a vacant seat.but a small suitcase（小提箱） was lying on it and a young man was sitting next to it.
"is this seat taken?" asked the gentleman.
"yes.it's my friend's." answered the young man."he's just coming.this is his suitcase."
"well," said the gentleman." i'll sit here till he comes ." five minutes later the train started,but nobody come.
"your friend is late." said the gentleman ."he has missed the train,but he need not lose his suitcase." and with there words he took the suitcase and threw it out of the window.
the young man got up and tried to catch the suitcase,but it was too late.it was a good lesson to him.——"it’s impolite to take a second seat just for being more comfortable for oneself."
( ) "a vacant seat" is a seat that_________.
A.someboby sits on B.there's something on
C.noboby sits on D.is for the disabled（残疾人）
( ) in fact,the suitcase belinged to the________.
A.young man B.gentleman C.young man's friend D.a strange
( ) we know from the story that the young man _______.
A.was dishonest B.was helpful and triendly
C.told the truth D.had a friend in the train
( ) we can guess that the young man must feel very_______ in the end.
A.happy B.upset C.relaxed D.excited

BDAD CAAB