1."We don't open the laboratory today " Mr Minh said.
⇒ Mr .minh said that he didn't open the laboratory that day.
2. "The film will begin at seven o'clock" they told me.
⇒ They told me that the film would begin at seven o'clock
3. An earthquake destroyed many houses yesterday
⇒ Many houses were destroyed by an earthquake
4.'Have you been to an English speaking country?'He asked us
⇒ He asked me if I had been to an English speaking country
5. They provided food then cleaned up the debris.
⇒ After they provided food,they cleaned up the debris
