must have been a long trip—Yeah, it _____ us a whole week to get there

Thanks for your directions to the house; we wouldn’t have found it ___.

14．Mum, you really need to have arest! You_________in the kitchen ever since you came back home three hours ago

It’s quite impossible that it will rain tomorrow. But if it _______, I would still go to the park.

The classroom is so dirty. _________ we clean it?