Let us not waste ______ time we have left .
34. -----Look! How long _________ like this? -----Three weeks! It’s usual here that rain ________ without stopping these days of the year.
33. A series of programs and the development of local and nationwide health care networks are signs___ the government is serious about health care.
32. Difficulties and hardships have ______ the best character of the young geologist.
31. If I _________ under the ladder to catch you when you fell, you _____now.
30._______ I know about this competition is that it is held every two years.