Lawrence Craven, a doctor from the USA, is the author of several published reports, one of _______ introduced the idea in 1953 _______ aspirin could reduce the risk of heart attacks.
| A．them; when | B．which; that | C．what; that | D．which; when |
Mr. Green asked Lily ________ she had written to her father _______.
| A．whether; the day before | B．whether; yesterday |
| C．that; the day before | D．that; yesterday |
Anne felt nervous ____ she gave a speech in front of so many students.
| A．for the first time | B．at the first time | C．the first time | D．at first |
---- Do you know our town at all?
-----No, this ________ the first time I _________ here.
| A．was; has come | B．is; come | C．is; had come | D．is; have come |
Last Sunday, they arrived at the farm _____ they had never paid a visit before.
| A．that | B．which | C．to which | D．for which |
When______ a new word, you’d better_______ a dictionary.
| A．come across, refer to | B．coming across, consult |
| C．coming across, look up | D．come across, consult |