Did you pass the test？
Yes．I'm very _____ for your advice．（ ）
| A． |
thankful |
B． |
careful |
C． |
useful |
D． |
helpful |
______，we saw the sun rise on top of Mount Tai．（ ）
A．LuckyB．LuckilyC．UnluckyD．Unluckily
The talent show is ______ the game show．I like both．（ ）
A．as boring asB．not so bored as
C．as interesting asD．not so interested as
Our country is taking action to ______ air pollution．（ ）
A．cut downB．cut upC．cut outD．cut off
The girl in the classroom ______ be Sarah．She has gone to the library．（ ）
A．mayB．mustC．can'tD．needn't
We have worked so long．Shall we stop ______ a rest？（ ）
A．haveB．to havingC．havingD．to have