Question

rewrite using past perfect continues tense of verbs given in brackets..
1. I did not know Dr Sandhu (do) valuable research in the field of cancer.
2. Rahul ( bat) the whole after. That's why he was exhausted. ​

Answer 1

Answer:

1. I did not know Dr Sandhu had been doing valuable research in the field of cancer.

2. Rahul had been batting the whole after. That's why he was exhausted.

Answer 2

Explanation:

1. i did not know Dr Sandhu was doing valuable research in the field of cancer

2. Rahul was bating the whole after. That's why he was exhausted