Ⅰ.用适当的引导词填空
1．Could you tell me ________ we are going for a picnic this Sunday?
2．The problem is ________ we can make good preparations in such a short time.
3．I don't know ________ or not the report is true.
4．The news ________ he told me is ________ Tom would go abroad next year.
5．We believe that there is no doubt ________ the meeting will be a great success.
6．Energy is ________ makes things work.
7．Whether the sports meeting will be held next week depends on________r the weather will be fine.
8．The question is ________ can complete the difficult task.
9．________ the Smiths will come to our school next week is a fact________ we all know.
10．It has been found________ plastics can widely be used in industries.
Ⅱ.单项填空
1．It worried her a bit ________ her hair was turning gray.
A．whether   B．that
C．what   D．when
2．We thought it a pity ________ she missed the chance.
A．if   B．what
C．that   D．when
3．The question is ________ we can't go there today.
A．that   B．what
C．which   D．when
4．We haven't settled the question of ________ it is necessary for him to study abroad.
A．if   B．where
C．whether   D．that
5．Many newspaper printed the governor's statement ________ he would support a tax cut.
A．and   B．was that
C．which   D．that
6．________ they found is ________ some brain systems don't go well with age.
A．Which; what   B．What; that
C．What; which   D．Which; that
7．It is uncertain ________ side effect the medicine will bring about，although about two thousand patients have taken it.
A．that   B．what
C．how   D．whether
8．________ his dream of going to college will come true is uncertain.
A．That   B．Whether
C．If   D．Even if
9．— I saw your neighbor break your window with a basketball.
— ________ he broke it made me nearly mad.
A．That   B．What
C．When   D．Whether
10．— Can I help you ?
— Yes, do you know ________？
A．when comes the bus
B．when will come the bus
C．when does the bus come
D．when the bus comes