A.the water will run back at high tide
B.the sea may break the dykes in rough weather
C.the battle against water will never end
D.the land is too low and water can rise up through the drained land
A. has argued B. has been arguing C. have argued D. have been arguing
A. Not he teacher but the students B. Both the students and the teacher
C. Neither the teacher not the students D. Not the students but the teacher
A. So fast he ran B. So fast did he run C. So fast ran he D. Such fast did he run
A. were B. was C. has been D. is
A. is needed B. has needed C. are needed D. need
A. was B. were .C. is D. are
A. has argued B. has been arguing C. have argued D. have been arguing
A. was, were B. were, was C. was, was D. were, were
A. Not he teacher but the students B. Both the students and the teacher
C. Neither the teacher not the students D. Not the students but the teacher
A. available
B. desirable
C. enormous
D. numerous
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