When _________ the car_______ —Sorry. I don’t know.

(2013·青岛一模)Scientists are still wondering ________ the Egyptians built the pyramids so long ago.

Jack won the first prize in the computer competition. Two years of hard work and patience _______ in the end.

There ____ lots of information on sports on ESPN.com．–But most of it is in English．

Which of the two T-shirts will you take—I’ll take. One is for my brother and the other is for myself.