As demand for ________foods has grown, many farmers would not use pesticide any more.
A. chemical-free
B. pesticide-free
C. antioxidant
D. duty-free
查看答案
We can ______ a lot ________ doing exercises every day.
A. benefit... with
B. benefit...on
C. benefit...from
D. benefit...into
There are many __________in organic foods.
A. benefit
B. beneficial
C. benefiting
D. benefits
Conditions_____ farm to farm, so the experiment results are not reliable.
A. vary from
B. change
C. differ
D. varies from
Ms Li, our English teacher, __________ arrived at the classroom for her bag are already on the desk.
A. may not have
B. must have
C. should have
D. could have