1．(2019·全国卷Ⅰ)Scientists have responded by noting that hungry bears may be congregating(聚集) around human settlements, leading to the illusion(错觉) that populations are higher(high) than they actually are.
2．(2019·全国卷Ⅲ)On our way to the house, it was raining so hard that we couldn’t help wondering how long it would take to get there.
3．(2018·全国卷Ⅰ)According to a review of evidence in a medical journal, runners live three years longer(long) than non­runners.
4．(2018·全国卷Ⅱ)Corn uses less water than rice and creates less fertilizer(化肥) runoff.
5．(2018·全国卷Ⅲ)He screams the loudest(loud) of all.
6．(2017·全国卷Ⅰ)As a result, people will eat more food to try to make up for that something missing.Even worse(bad), the amount of fast food that people eat goes up.
7．(2017·全国卷Ⅰ)However, be careful(care) not to go to extremes.
8．(2017·全国卷Ⅱ)Steam engines were used to pull the carriages and it must have been fairly(fair) unpleasant for the passengers, with all the smoke and noise.
9．(2017·全国卷Ⅲ)It is certainly(certain) fun but the lifestyle is a little unreal.I don’t want to have nothing else to fall back on when I can’t model any more.
10 (2019·江苏卷)Unlike _____________( tradition )gyms, app­backed gyms offer people flexible options to exercise.
11. (2018·江苏卷)Despite the poor service of the hotel, the manager is _____________( reluctantly )to invest in sufficient training for his staff.　 
12._________________( Light­heart) and optimistic, she is the sort of woman to spread sunshine to people through her smile.　
13. (2019·天津卷)A dog’s eating habit requires regular training before it is __________(proper) established.
14.(安徽卷)_______________( Thankful), I managed to get through the game and the pain was worth it in the end.　
15. (江西卷)The house was too expensive and too big.___________, I’d grown fond of our little rented house.
16. (天津卷)Though I worked _________hard as before, I felt no fatigue.　
17.I’m not a little tired today after giving the room a thorough cleaning and I have never had as ____________(tire) a day as today.　
18. (2018·全国卷Ⅱ)Studies found that people who woke up early for exercise slept __________(good ) than those who exercised in the evening.
19. (天津卷)It was also much more than we could afford, _______far less than the original asking price.
20.  (四川卷)Andy is content with the toy.It is ______________(good) he has ever got.
21. Shanghai is one of______________(big)  cities in our country.
22. Africa is the second___________(large)  continent in the world.
23. Your story is perfect；I’ve never heard a __________(good ) one before.
24. The Yangtze River is ____________________(long）than any other river/than all the other rivers/than any of the other rivers in China.
25.  (全国卷Ⅲ)The more positive an article, the ___________(likely) it was to be shared.　
26. ___________________（越来越多的）people realize the importance of learning a foreign language well.
27.  (江苏卷)The electronic waste stream is increasing three times ___________(fast ) than traditional garbage as a whole.
28. 　(全国卷Ⅰ)Finally, that hard work paid off and now the water in the river is ____________(clean) than ever.