Who helped Li Lei with his English — , he learnt it by himself.

Yesterday I downloaded a new program ______ the InternetNow I can watch TV and movies ______ my computer

I always tell my students ______ on the road because it’s really dangerous.

Lucy has a great sense of humor and always keeps her colleagues with her stories.

Sorry, sir, your computer isn’t ready yet. It _____ at present.―That’s all right.