He was told that it would be at least three more months ___________he could receover and return to work.
| A．when | B．before | C．since | D．that |
27. The number of traffic accidents caused by drinking is ________ as the number of those caused by non-drinking driving.
| A．twice as many | B．many as twice | C．as twice large | D．twice as large |
26. It is difficult to do some of the experiments ________ in our physics textbooks.
| A．to describe | B．describing | C．described | D．being described |
25. --School will soon be over. Can you recite the text now?
--I’m not sure, but I ________ it all this morning.
| A．have read | B．was reading | C．read | D．had read |
24. Peter likes doing sports ________ his brother prefers listening to music.
| A．as | B．for | C．while | D．And |
23. The Chinese government has made ________ a goal to increase peasants’ income.
| A．it | B．this | C．that | D．One |