---I called you at 4:00 yesterday afternoon, but nobody answered.---Sorry, I ______ with my friends at that time.
Hard work plus(加) a little wisdom can make it possible for us in our study.
He had to in hospital until he was better.
Our luggage(行李) is too heavy, we should get a porter(搬运工) it.
After he had his flat painted, his flat looked new.
He is very lazy, so I am worried about his future.