几道英语选择题和句型转换

几道英语选择题和句型转换
1.You ( ) yesterday if you were really serious about the job.
a.ought to b.ought to be coming c,ought to have come d.ought have come
2.Astronomy in ( )science,which is ( )science of ( )stars.interests many students at school in this subject.
a. the a the b.the the a c. the the 不填 D 不填 the the
3
---I wonder if U could use your bicycle for an hour.
===( )
a/ yes,you could b why not ?do it for youself c of course go ahead
d I am afraid you mustn't
4.We were all worried over the fact ( ) tiy were ill.
句型转换
Mary arribed just before the bell rang.
Mary （ ）（ ） arribed just before the bell rang
第4题补充选项
a.that n.what c.which d.about which跟改句型转换
Mary arribed just before the bell rang.
Mary （ ）（ ） just before the bell rang