Professor Smith, along with his assistants, _____on the project day and night to meet the deadline.
21.—It is raining cats and dogs.22. — ..23.
19.—My home is in that tall building over there. — ?
20. _________raining hard for 3 hours without stopping.21.
22. —Has the boy got his bicycle now?23. —Yes, the police gave .24.
22.—Boy, ____________ —It is, looks like spring is coming soon. —Yeh, It'll just be a few more weeks.