高中英语单选！！
1.Weonthisprojectforfourhours.Let’shavearest.A.areworkingB.havebeenworkingC.workedD.h...
1. We on this project for four hours. Let’s have a rest.
A. are working B. have been working C. worked D. had worked
2.If you plant watermelon seeds in the spring, you fresh watermelon in the fall.
A．eat B．would eat
C．have eaten D．will be eating
3.For many years, people electric cars. However, making them has been more difficult than predicted.
A．had dreamed of B．have dreamed of C．dreamed of D．dream of 展开
A. are working B. have been working C. worked D. had worked
2.If you plant watermelon seeds in the spring, you fresh watermelon in the fall.
A．eat B．would eat
C．have eaten D．will be eating
3.For many years, people electric cars. However, making them has been more difficult than predicted.
A．had dreamed of B．have dreamed of C．dreamed of D．dream of 展开
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