The students successfully finished the experiments in the lab under the teacher’s _______ and handed in the report before the deadline.
. .If you cheat in the exam, you could hardly________ it.
. .He once studied in Zhejiang University, ________he went abroad for further study.
. .More attention should be paid __________ English.
. .More than 60 million people in southwestern China ________the drought nowadays as a result of less rainfall, environmental damage and so on
. Please don’t do anything harmful ________ our nature, or we humans will have no ________ each other.