The Nile River ____ flood large areas but now the water ____ produce electricity. [ ]A. used to; is

题目简介

The Nile River ____ flood large areas but now the water ____ produce electricity. [ ]A. used to; is

题目详情

The Nile River ____ flood large areas but now the water ____ produce electricity.

[     ]

A. used to; is used to
B. used to; used to
C. was used to; is used to
D. was used to; used to
题型:单选题难度:中档来源:同步题

答案

A

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