In the following sentences, two activities of past, occurring at two different points of time in the past, are indicated. The one that happens earlier takes the “had” + past form of verb
(
V
3
)
, while the one that follows it takes the simple past form of verb
(
V
2
)
.
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(A model answer has been provided for students’ reference. It is strongly recommended that students prepare the answer on their own.)