The science of computer, _____rapid progress has been made in recent years, is the most important of all science.
This dictionary is at least three times as thick as you borrowed from the library.
The camera is a souvenir by my cousin for me when he went to Japan. I do like it.
Our teacher is very strict ______ us, and we all show our respect ______ her.
My spoken English was poor and you can imagine what great difficulty I had ______ myself understood.
It is bad for a man to smoke in public places where smoking is not allowed.