—Believe it or not,my sister and I are twins.—Oh,you must have had the case________you were taken for your sister.
This factory produced much dirty water, which resulted in a wide _______ of environmental problems.
Please tell me how the accident _______. I am still in the dark.
It is______ of him to set his aim high but do little, so he is always leaving things undone. A. specific B. typical c. flexible D. widespread
— Do you think it's a good idea to make friends with your students?—________, I do. I think it's a great idea.
Mary couldn’t________ the terrible working conditions in that factory and resigned last week.