We should look forward to the future, ________ never forget the past.
or
so
but
for
There is __________ “u” and __________ “s” in the word “student”.
—Your toy panda looks very lovely.— __________.
His mother wants __________.
How many ______ are there in your school.
The Youth Olympic Games(青奥会) took place(举行)in Nanjing_____ August,2014.