When you go _________ the street, you must be careful.

d to work deep into the night, ______shecouldn’t have spread the messages to all the relevant people successfully

Now one of the most serious problems manypeople are worried about _____ on the lack of adequate housing space.

Who’s the most modest boy in your class–Daniel. He never _____in public.

What are you going to do this weekend— There ________ a concert at school. I’m going tolisten there.