Mr． Green ____ be at home now． He went abroad on vacation last Friday．（ ）
| A． |
needn't |
B． |
mustn't |
C． |
can't |
She is too busy to help us finish the work．
Let's do it______．（ ）
| A． |
herself |
B． |
myself |
C． |
itself |
D． |
ourselves |
There is____old piano in ______corner of the living room．（ ）
| A． |
an； the |
B． |
an； 不填 |
C． |
a； the |
D． |
a； a |
﹣Sir， it's true that being happy is an ability． So can you tell me ______ ？
﹣Yes． Just as President Xi says， "Happiness is achieved through hard work．"（ ）
| A． |
how we can find happiness |
| B． |
who can help achieve happiness |
| C． |
why happiness is so important to us |
Nowadays China has made great achievements in many fields． We really ______ our amazing China．（ ）
| A． |
take pride in |
B． |
take care of |
C． |
take an interest in |
Except for working hard， we should give more attention to proper exercise and enough sleep． ______ ， health always comes first．（ ）
| A． |
For example |
| B． |
After all |
| C． |
So far |