He can__________ walk because it’s raining__________.

There is 80-year-old woman under the tree . old man is zhanghong’s grandmother .

It was _________ he entered university _________ he got on well with his parents.

choose a simpler life style,______________ where I can ride my bike all over and do not have to make agreat living to survive.

We don’t doubt _____ he will succeed in the research work[ ]