If it is a sunny day tomorrow, let’s ______it and go swimming in the South Lake.

I heard that a great fire _________ when I was out in Tianjin last night.

She lives ______, but she doesn’t feel _______.

________my mother is very tired after a whole day’shard work, she tries to spare time for me.

Never before ______ in greater need of modern public transport than it is today. [ ]