I ran 10 miles last weekend. Can you believe that? – Wow, that ______ easy!

Tom ______to paint the fence but he got his friends to do it for him

In the past few years, Chinese scientists ________ great success in the field of space flight

The biggest problem with Bob is that henever has got a/ an ___ goal in his life.

My father used to ______ me to concerts.But now, I have no time for concerts.