Environmentalists urged that more effective measures __________ by the government to reduce the pollution.
1 Having never met with such a _____ problem, he felt _____ and didn’t know how to solve it.
Our class _______ 55 students at that time.
She felt herself _______ by her friends.
As a teacher, he is not only strict _____ his students but also strict _____ his work.
—I would like to pick up your sister for you. But I don’t know her. _____? —A middle-aged woman with a round face, wearing a red blouse.