He is so busy with the research _____ he has no time left for any other activity.
----Why are you late for school ?----Because our car _______ halfway to the destination.
With a lot of difficulties ___ , they went to the seashore and had a good rest.
The thief , they were happy to shout loudly.
This medicine will him of his cough.
Professor Hawking stepped into the office he knew that there was no hope.