Is this the reason __________ at the meeting for his carelessness in his work?[ ]

There are ________ flowers in the square during the National Day.

I hope Jim won’t mind lending you his new digital camera. — He ___________. I have already borrowed one from my cousin, David.

The time is drawing near_____food raised in space will directly benefit humans below.

It won’t be long _____ the island ________ to our motherland.