7. Everything changes _____.What was not accepted in the past may be very popular with people now.
________ mud on his trousers brushes off easily.
The young lady was careful _________.
The bridge is so important to the people here that once ________ it must be carried out without delay.
Though they had a meeting yesterday, there is still much that remains______.
The students expected there ________ more free time before the test.