( ) The White House is in .
A. France B. China C. Washington D.C.
My sister is ________ TV．
A．watch B．watches C．watching
--Thank you for your help． -- ________
A．Really? B．No，thanks． C．You're welcome．
It's ________ black．It's ________ black ear．
A．／；／ B．a；／ C．／；a
--What's the date today? --________
A．It's Monday． B．It's in May． C．It's May 1st．
________ pictures are there on the wall?
A．How many B．How much C．Whose