We must take precautious measures to prevent the river______.A．to be pollutedB．from pollut

It’s time we ____some measures to solve this problem.A、must takeB、will takeC、tookD、have

Because it is not a serious problem, we are not necessary to take strict measures against

Planning our vocation we must take the frequent______of the weather into consideration.A．t

We learn from Para. 8 and Para. 9 thatA．diabetes patients must take medication upon diagno

According to the news, what measure did authorities take to fight the flood？A．Residents we

Under such _______ we should take a new measure at once.