Our research has focused on a drug which is so _____ as to be able to change brain chemistry.
| A．powerful | B．influential | C．monstrous | D．vigorous |
Do you remember those days _______ we spent along the seashore very happily?
| A．when |
| B．where |
| C．which |
| D．who |
Because of my poor memory, all_______ you told me has been forgotten.
| A．that |
| B．which |
| C．what |
| D．as |
The woman _______ is talking to my mother is a friend of hers.
| A．whose |
| B．who |
| C．whom |
| D．which |
The man _______ visited our school yesterday is from London.
| A．who |
| B．which |
| C．whom |
| D．when |
Children who are not active ordiet is high in fat will gain weight quickly. (2010 .湖北)
| A．what |
| B．whose |
| C．which |
| D．that |