例：At 12:15 yesterday, we were having lunch.
I was watching TV then.(我當時正在看電視)。 then=at that time 在當時的某個特定時間(過去)
例：On the day before Mother’s Day, she was shopping for Mom’s gift.
at six yesterday 昨天六點
at that time那時
this time last year 去年這個時候
at 3:15 last night 昨晚三點時 (過去時間點+過去式時間)
(3)「過去進行式」的「動詞形式」為:was / were ＋ Ving
1.直接加ing ex. playing / doing
2.字尾為e去e加ing ex. ride→riding
例：I went to bed at ten o’clock last night
1.It was Sunday. Ted was playing (play) basketball with his classmates in the park.
2.A: What were you doing (do) at this time yesterday?
B: I was sleeping (sleep).
3.A: Did you go (go) out last night?
B: No, I was at home.
4.It was raining(rain) at three o’clock yesterday afternoon.
5.He was riding(ride) a bike in the park at 11 o’clock this morning.
6.We were cleaning(clean) the house then.
7.I went(go) to the movies with Alice at six yesterday evening.
(A)1.I Tom in the park at six thirty this morning.
(A) saw(B) was seeing(C) see(D) am seeing
(B)2.Amy to him on the phone at that time.
(A) talk(B) was talking(C) talks(D) is talking
(C)3Grandpa was at nine last night.
(A) going to bed(B) finding his cap
(C) listening to music(D) seeing a TV show
(D)4This time last week, we a Christmas party.
(A) had(B) have(C) are having(D) were having