I didn’t quite follow him because he explained the theory _____that is too abstract for me.
The Browns lived____in the old society.
Operations which left patients____and in need of long periods of recovery time now leave them feeling relaxed and comfortable.
Finding a job in such a big company has always been____his wild dreams.
Though having lived abroad for years, many Chinese still ______ the traditional customs.
I won’t tell the student the answer to the math problem until he ____on it for more than an hour.