2. While i was spacking things he rang up a taxi to take me to the station.

3. Thank you for the catalogue which you mailed us on jan 5.

4. He instructed her to switch on the tape recorder and press record button.

5. They recommend that this work should be done immediately.

No copy. Chúc học tốt

Xin trả lời hay nhất ạ!

1. while / I / pack / things / he / ring up / taxi / take / me / station.

⇒ While I was packing my things he rang up the taxi to take me to station.

3. Thank / catalogue / which / mail / us / Jan 5.

⇒ Thanks for catalogue which is mailed for us on Jan 5.

4. he / instruct / her / switch on / tape recorder / press / record button. 

⇒ He instructs her to switch on the tape recorder by press on record button. 

5. they / recommend / this work / do / immediately.

⇒ they recommend that this work to do immediately.