1. They started working, and the boss came in When ............................ 2. The burglar escaped before the police arrived. When .............................................................................
2 câu trả lời
`1.` They were working when the boss came in
`-` Câu ở QKTD: S + was/were + V_ing, when + S + V + ...
`2.` When the police arived, the burglar had escaped
`-` Câu ở QKHT: When + S + V, S + had + Vp.p + ...
`1` They were working when the boss came in
Thì `QKTD:`
Công thức:
$S + was/were +`V_(ing)`, $when + S + V + O$
`2` When the police arived, the burglar had escaped
Thì `QKHT:`
Công thức:
$When + S + V, S + had + Vpp + O$
Câu hỏi trong lớp
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