_____, the project is well carried out despite some minor problems[ ]

I’m sorry I didn’t phone you, but I’ve been very busy____ the past couple weeks

Yancheng is a greener city now because more and more trees ________ every spring.

John was fired by his factory and only then ________ how wrong he was to be lazy and careless.[ ]

Our teacher insisted that the keywords worth paying attention _______ before class