Autumn is ___________ beautiful season with fresh air and fallen leaves．（ ）
A．/B．anC．theD．a
﹣Shakespeare（莎士比亚）is a great writer is considered as a genius（天才）．
﹣I think so．Many people around the world admire him very much．（ ）
| A． |
when |
B． |
who |
C． |
which |
﹣I want to travel to the Black Bear Island next weekend．
﹣Good idea!Make a plan first， you will enjoy more beautiful scenery．（ ）
| A． |
but |
B． |
and |
C． |
however |
﹣I am going to Australia next week．
﹣The radion says there is going to be in Australia．Don't forget to take your warm clothes．（ ）
| A． |
snow |
B． |
snowy |
C． |
snowing |
﹣Hi，Jack!Could you come to our English party？
﹣Sorry，I ．I have to look after my little sister at home．
| A． |
must |
B． |
could |
C． |
can't |
Xi Jinping，our president，paid a visit to Harbin last month．How encouraging!（ ）
| A． |
63 years old |
B． |
63 years'old |
C． |
63﹣year﹣old |