The new drug will not be put on the market______ it has proved
safe on humans.
A: if
B: until
C: since
D: when
safe on humans.
A: if
B: until
C: since
D: when
举一反三
- 18.The new drug will not be put on the market ____ it has proved safe on humans.
- It is the responsibility of the company seeking to market a drug to test it and submit evidence that it is safe and effective.
- He has lived in London______he left Shanghai two years ago. A: when B: after C: since D: until
- What<br/>is the central idea of the last paragraph? ______ A: Morgan<br/>Rees has worked until he is 76. B: Morgan<br/>Rees has developed the export market and improved the profits by200%. C: Morgan<br/>Rees hasn't been bored since he bought the factory. D: Since<br/>he started working again, Morgan Rees has expanded the company<br/>considerably, which has enriched his retired life.
- Sales of the new drug will be until more tests are completed.