I have only, so far, committed to two holiday parties on that evening, so I _________ accept your invitation.
a. graciously
b. gratefully
ans: B
Graciously means “in a kind and polite manner.” It’s ridiculous to state that you’re accepting or declining something kindly and politely.
You can graciously accept an apology, for example, by not repeating a list of grievances as you do so. You can graciously decline an invitation by saying that you wished you could attend but have a prior engagement — rather than saying, for example, that you want to wait and see if something more enticing is happening that weekend.

Be careful shopping online: According to security experts, ____ the season for identity theft.
a. ’tis
b. t’is
ans: A
‘Tis is a contraction of it is. The rule with contractions is that we put the apostrophes where the letters are missing.
check:
theoatmeal[dot]com/comics/apostrophe

Which is correct?
On December 24th, a lot of children can be found gazing out windows for a glimpse of _________ sleigh.
a. Santa Claus’
b. Santa Claus’s
Answer: It depends.
Explanation:
The AP Stylebook says to add just an apostrophe for the possessive form of a name ending in s; the Chicago Manual of Style says to add a second s as well.
If you have to follow one guide or the other, there’s your answer. Otherwise, decide which one you prefer and just be consistent. It’ll keep you on the “nice” list, grammar-wise at least.
what the....

Which is correct?
__________________ is promoting eBooks as “instant gifts.”
a. Barnes & Noble
b. Barnes and Noble
Answer: a.
Explanation:
Barnes & Noble uses the ampersand in its name so we do too. Some guides, like the Chicago Manual of Style, once advised changing ampersands in company names to “ands” but they’ve changed their minds.
This post was inspired by a fascinating article on ampersands on Dictionary.com. You’ll have to go read it to see everything that’s so fascinating about it, but here are a few choice facts:
The ampersand originated as cursive et, Latin for and, back in the first century.
It would be another millenium-and-a-half before the word ampersand was coined.
The ampersand was once the 27th letter of the alphabet, pronounced as “and per se and,” which devolved to “ampersand.”
never heard of this

语法。。。。。。。。