Although he _______ the danger to his own health, he found it difficult to quit smoking.
| A．was very aware of | B．well awared of | C．was well aware of | D．very awared of |
Much attention ____ pronunciation if you want to speak English well .
| A．should pay to | B．must be paid | C．should be paid to | D．will be taken of |
He must be in the park , ____ ?
| A．must not he | B．isn''t be | C．needn''t he | D．doesn''t he |
— Shall I tell Tom about it ? — No , you ____ . I''ve told him already .
| A．needn''t | B．wouldn''t | C．mustn''t | D．shouldn''t |
There used to be a church in the past , ____ ?
| A．isn''t there | B．didn''t there | C．usen''t it | D．used not it |
— There were already five people in the car but they managed to take me as well .
— It ____ a comfortable journey .
| A．can''t be | B．shouldn''t be | C．mustn''t have been | D．couldn''t have been |