There seems to be two causes as I try to figure out __________ that prevents so many children from being as happy as before.
| A．how it is | B．when it is |
| C．what it is | D．why it is |
---It’s said that no one ______ light a cigarette at a gas station.
--- Yes. Safety always comes the first.
| A．can | B．may | C．shall | D．must |
I don’t know ______ or not the books _____ to the homeless children next month are really useful.
| A．if, given | B．whether, to be given | C．whether, giving | D．if, which are given |
.—I failed again in the math test.
-- ______.
| A．Why | B．Cheer up | C．No problem | D．That’s all right |
— We usually go hiking for vacation．I like it，but I want to try something more challenging this year．
— ________
| A．Let’s go． | B．Cheer up． | C．Like what? | D．Take care． |
My pen-friend，Peter，wrote to me，expressing the hope _____ he would come to Beijing to see the 2008 Olympic Games．
| A．which | B．that | C．what | D．whether |