---How long did it _____ you to work out the difficult maths problems?
---I ______ about half an hour on it .
A.take ; took | B.spend ; took | C.spend ; cost | D.take ; spent |
---How long did it _____ you to work out the difficult maths problems?
---I ______ about half an hour on it .
A.take ; took | B.spend ; took | C.spend ; cost | D.take ; spent |