Available under Creative Commons-NonCommercial-ShareAlike 4.0 International License.
Complete the following sentences by selecting the correct form of the verb in simple present, simple past, or simple future tenses. Write the corrected sentence on your own sheet of paper.
- The Dust Bowl (is, was, will be) a name given to a period of very destructive dust storms that occurred in the United States during the 1930s.
- Historians today (consider, considered, will consider) The Dust Bowl to be one of the worst weather of events in American history.
- The Dust Bowl mostly (affects, affected, will affect) the states of Kansas, Colorado, Oklahoma, Texas, and New Mexico.
- Dust storms (continue, continued, will continue) to occur in these dry regions, but not to the devastating degree of the 1930s.
- The dust storms during The Dust Bowl (cause, caused, will cause) irreparable damage to farms and the environment for a period of several years.
- When early settlers (move, moved, will move) into this area, they (remove, removed, will remove) the natural prairie grasses in order to plant crops and graze their cattle.
- They did not (realize, realized, will realize) that the grasses kept the soil in place.
- There (is, was, will be) also a severe drought that (affects, affected, will affect) the region.
- The worst dust storm (happens, happened, will happen) on April 14, 1935, a day called Black Sunday.
- The Dust Bowl era finally came to end in 1939 when the rains (arrive, arrived, will arrive).
- Dust storms (continue, continued, will continue) to affect the region, but hopefully they will not be as destructive as the storms of the 1930s.
- 瀏覽次數：2570
