________ doing his experiment, he forgot to pick up his wife from the station. 

Michelle found a job as a high school teacher which ________ spending quite a lot of time with students. 

What great fun the children had____ basketball! I didn’t have the heart to stop them.

I would rather ________ to work after my graduation, but my father would rather I ________ abroad for further education.

It rained continuously for about 3 hours on the way, completely _____ his appointment with the interviewer.