BY vs UNTIL

I will be at the airport _____   5 o'clock. 

• by 
• until

I will wait _____ next week for your answer.

• by
• until

We should be in Ashburton _____ lunchtime.

• by
• until

I will probably be home _____  then. 

• by
• until

Let's work _____ it is dark. 

• by
• until

Could you deliver the computer monitor __________ the end of next week?

• since

• while

• by

• until

I waited for her __________ six o'clock but she didn't come.

• by

• until

• during

• for

My sister is arriving tomorrow and will be here __________ the end of next week.

• by

• until

• during

• since

The concert went on __________ eleven o'clock.

• while

• for

• since

• until

Please send me the information __________ Monday.

• by

• during

• since

• while