If the world population is increasing continuously，food supplies will not be ______ to feed them.
A: sufficient
B: efficient
C: equal
D: effective
A: sufficient
B: efficient
C: equal
D: effective
举一反三
- 94. There is real concern that food supplies will not be _______ to feed the increasing world population. A: sufficient B: satisfactory C: effect D: efficient
- With the population explosion, scientists will have to _____ new methods of increasing the world’s food supply.
- Alawyerneedsan______secretary. A: inefficien B: efficient C: effective D: sufficient
- Alawyerneedsa(n)_____secretary. A: inefficient B: efficient C: effective D: sufficient
- This pretty young girl is an/a ________ secretary. A: efficient B: effective C: sufficient D: grateful