41. We find country life ________________ to living in the city. (prefer)
42. ________________ people stand to benefit most from these policies. (employ)
43. At present, solar cells are too expensive and ________________ to be used in the commercial generation of electricity. (efficiency)
44. His English is not the ________________ in the class. ( bad)
45. Visitors said that the ________________ of the people in Vietnam was most unforgettable.
(hospitable)
46. One of the ________________ of English is that it is becoming simpler and simpler. (strong)
47. The explanation of the accident is very ________________. (confuse)
48. Freedom of ________________ is one of the fundamental rights. (speak)
49. Don’t be so ________________. We’ve only been waiting for a few minutes. (patient)
50. ________________ ecology will lead to a lot of natural disasters. (balance)
1 preferable
2 Unemployed
3 ineffective
4 worst
5 hospitality
6 strongest
7 confusing
8 speech
9 impatient
10 unbalanced