1.Only after a year ( ) to see the result of my experiment.A

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1.Only after a year ( ) to see the result of my experiment.A.I began B.I had begun C.have...
1.Only after a year ( ) to see the result of my experiment.
A.I began
B.I had begun
C.have I begun
D.did I begin
2.( ) in the fields for two hours,they took a rest.
A.Having worked
B.Working
C.Worked
D.Being worked
为什么
第一题c为什么不对

1.D only引导的倒装句,
2. A took是过去时,要发生在之前的动作,完成时

1.Only after a year ( ) to see the result of my experiment.A only after six months,i began to see the result of my work Only after my friend came to my help ——.A did the comeputer 英语翻译The result of the experiment seems to be the most import As a result As the result As a result of As result of 的区别英语翻译During my one-year stay in the US,I took a chance to see as the result, as a result ,as a result of ,as result ,as a To our delight,the result of the experiment is entirely ____ My father and mother are going to see a play the day after t 1.To learn about the stages in a scientific experiment. The professor seemed ____at the result of the experiment. after a rest,they( )( )working on the experiment.