Question

英语问题 选择题

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
答案是什么 为什么

Answer 1

1.Only after a year ( D ) to see the result of my experiment.(only after a year时间状语在句首，句子倒装)
A.I began
B.I had begun
C.have I begun
D.did I begin
2.( A ) in the fields for two hours,they took a rest. （非谓语动词作状语，动作发生在主句动作之前， 用having done的结构）
A.Having worked
B.Working
C.Worked
D.Being worked

Answer 2

A和C