look at the c( ).it is decemeber 11th today根据句意及首字母提示完成单词

look at the c( ).it is decemeber 11th today根据句意及首字母提示完成单词
还有hat chou is my favorite singer.he is going to give a c( ) in jinan next month
用所给词的适当形式填空
to ( ) (who) are you going to lend the book. who是提示单词