In____review of 44 studies, American researchers found that men and women ____who ate six key foods daily cut the risk of ______ heart disease by 76%.
| A．a; the | B．the; a | C．a; 不填 | D．不填； a |
This photo of mine was taken________stood the famous high tower.
| A．which | B．in which |
| C．where | D．there |
I’ll never forget the most wonderful holiday ________ we stayed in the country with my grandparents.
| A．when | B．which |
| C．where | D．that |
At 13，Samuel received a training course in drawing for three years，________ he got a good opportunity for further development.
| A．after that | B．after which |
| C．after it | D．after this |
Her sister has become a lawyer，________ she wanted to be.
| A．who | B．that |
| C．what | D．which |
Let’s talk about the persons and the things ________ we can remember.
| A．which | B．whom |
| C．that | D．what |