The author of the report is well _____ with the problems in the hospital because he has been working there for many years.

Although I try to talk to my classmates, I still find _____ hard to make good friends with them.

He hasn’t slept at all for three days _____ he is worn out

He is very the driver, because his car hit his brother.

you going to travel during this summer vacation— No, I’ll have to do some part-time job for my study__________, there’s a disease spreading