31. New laws have been enacted by the legislature to reduce carbon dioxide ______ fromvehicles and f
33. This liquid is very ______, so it shouldn’t be used near an open fire.(A)exhaustive (B)flammable
34. The infertile woman ______ wanted a child, so she adopted one from the nearby orphanage.(A)despe
36. Due to significant ______ in medical technology over the past few decades, people are ableto sur
38. The employee needs to make a few adjustments to the ______ before presenting it to theboss.(A)di
40. If you ever ______ things such as clothing online, you should be prepared for somedisappointment
41. Joanne will have her dog ______ in a pet beauty salon next week.(A)cleaning (B)cleaned (C)to cle
43. Before setting off, you should ______ the tourist information center for details about yourtrip.
44. He spent almost an hour at the station ______ for the train.(A)wait (B)waiting (C)waited (D)to w
45. If you need further ______, you can visit our Facebook page and learn more.(A)information (B)exp
46. Mr. Lin wanted you to call him back ______. He seemed to be very worried.(A)globally (B)immediat
47. The manager is ______ the new project. He is the one who makes the final decision.(A)by means of
48. You can call the technicians if the machine ______. They will come and fix it as soon aspossible
49. Passengers are not allowed to open this window ______ there is an emergency.(A)unless (B)so that
50. The man was sitting on the chair ______ his eyes closed. He appeared to be exhausted.(A)for (B)b
26. In total, there are about 1000 people ______ this year’s singing contest.(A)attending to (B)part
27. ______ I have known the ending of the story, I am still touched by it.(A)Even though (B)If (C)Un