Formthesentences. 连词成句。 1.chalk, is, whe

问题：

Form the sentences. 连词成句 。

1. chalk,   is,   where,   the    

                                                                   ?

2. playing,   he,   ping-pong,   is    

                                                                    .

3. markers,   do,   how,   many,   have,   you

                                                                   ?