37.They all ______ your health.

二、多选题（30分）31.His words ______ a threat.

5. Why the explosion occurred was ________ the laboratory attendant had been careless．

10. _______, I will help you with your work.

9. We agreed to accept _______ they thought was the best professor in the college.

53.My parents think being a journalist is a dangerous job, but I’m not scared of. 

13.John _______ me he was going to help me with my English.

18.We walked ________ into the forest and lost our way ; we _______regretted it.

21.—Will you have a second child?—Haven’t decided yet. We ________ about it the whole year.

24.American women usually identify their best friend as someone _______ they can talk frequently.

55.After we paid the oranges we harvested, we headed back home. 

25.— We have to stop talking here outside. Listen, _______!—Hurry up, or we‘ll be late.