例：At 12:15 yesterday, we were having lunch.
例：On the day before Mother’s Day, she was shopping for Mom’s gift.
then 當時at six yesterday 昨天六點
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 （我昨晚10點上床睡覺。）
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