`b)` Mary was having

`c)` we were playing

`d)` were you dancing

`e)` Sue was shopping

`f)` Some of the boys were looking

`g)` we were waiting

`h)` I was talking

`-------------`

$\text{*Structure: Past Continuous: }$ (thì quá khứ tiếp diễn)

$\text{(+) S + was/were + V-ing + ...}$

$\text{(-) S + was/were not + V-ing + ...}$

$\text{(?) Was/Were + S + V-ing + ...?}$

`DHNB:` at `+` giờ `+` thời gian trong quá khứ, at this time `+` time in the past, in `+` năm,...

Công thức thì QKTD 

(+) S + was/were + Ving 

(-) S + was/were+ not + Ving 

(?) Was/Were +S +Ving? 

--> Diễn tả hành động đang xảy ra ở 1 thời điểm nào đó trong quá khứ 

--> Diễn tả hành động đang xảy ra thì có hành động khác chen vào (while / when)

DHNB: at + giờ + thời gian trong QK, at this time + thời gian trong QK, ...

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b. Mary was having.

c. we were playing

d. were you dancing

e. Sue was shopping

f. Some of the boys were looking

g. we were waiting

h. I was walking

`color{orange}{~LeAiFuRuiHuiBao~}`