I saw Jim ______ into that new building just now.
Oh,it's our new library.It ______ to the public for a week.( )
walk; has opened
walk; has been open
walking; has opened
When you're invited to have dinner at home by an American friend,you should be ___ or a little later.It's different from our Chinese custom.( )
on time
on business
on show
If your best friend tells you his secret,it's ___ for you to keep them for him.By doing this,you can win others'trust.( )
special
necessary
possible
Our teachers have been with us for nearly three years ___ we came to junior high school.We should t
hank them for what they have done for us.( )
until
before
since
Skimming is a kind of reading strategy.It means reading an article ___ to find the main idea without reading every word.( )
quickly
carefully
clearly
You should look into his eyes when you talk to somebody.It shows your ___.( )
shyness
politeness
quietness