—Come on，Kitty.
—Oh, good heavens! Both my legs are nearly to give out. I_______ for hours like a dog.
| A．have been walking | B．had walked | C．was walking | D．walked |
In some countries, ____ is called "equality" does not really mean equal rights for all people.
| A．which | B．that | C．what | D．one |
The reason why she couldn’t come to the meeting was_____ she had not been invited.
| A．because | B．which | C．that | D．why |
____ surprised me most was ______ they had finished it so quickly.
| A．What, what | B．That, that | C．What, that | D．That, what |
Maria has to baby-sit. That’s______ she can't come with us.
| A．why | B．ho | C．when | D．what |
--- I rang you at about ten, but there was no reply.
--- Oh, that was probably ____ I was seeing the doctor.
| A．when | B．why | C．what | D．that |