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Car racing is an adventurous sport, popular with young men, __________quick mind and skill matters much more than anything else.
| A．where | B．what | C．when | D．that |
Among all the birthday gifts ______ a DIY card, which I like best.
| A．is included | B．include | C．were included | D．including |
___ you lose the paper document, sign in www. Sina.com, __ you might download all you need.
| A．If, which | B．So long as, what | C．In case, where | D．Even if, as |
I have heard a lot of good things about you I came back from abroad.
| A．since | B．until | C．before | D．when |
He wrote a letter ______ he explains what had happened in the accident.
| A．what | B．which | C．where | D．how |
Do not let any failures discourage you, for you can never tell ________ close you may be to victory.
| A．how | B．that | C．which | D．where |