I______ to see grandma and help her withsome housework every week.

Hearing the steps of their teacher on the floor, the students pretended ________ something attentively.

The adoption of orphans and physically challenged children has been a subject of public debate _______ a fire in an unregistered orphanage last month

The last time I _________ her,she _________at a medical college

I was ________ at the letter, which was _________ to my classmates..