Indicate ALL syntax errors of each SML

statement and try to correct.

Eg$.3,1=2$

answer $1=>$ type mismatch for a list, $3$

has to be boolean.

answer $2=>$ type mismatch for a list, $1=2$

has to be int such as $1+2.$

answer $3=>$ different type of values, can

not be list, tuple instead $(3,1=2)$

$(1)$ valx$=$ if $($hd $($false$))$ then tI $([1,2\mathrm{.}0])$;

$(2)$ val $L=\left[\begin{array}{ccc}hd& tl& ?\\ tl& hd& hd\end{array}\right]$;

$(3)$ val $x=($string$,$ real, $[$hd $1,2,$ tl $([3,4]]$;

$(4)$ val $x=$ if hd $2==1$ then tl$[2+1]$ else

nil;

$(5)$ val $x=($hd tl $[1,2],$ ord $($tl

$($explode$("$ab$")),-3\mathrm{.}0)$;

$(6)$ val hd $($tl $($tl $[4]))$;

$(7)$ val $x=1$ div if true then $2\mathrm{.}0$ else $3$;

$(8)$ tl $($hd $[$floor$(2\mathrm{.}3)/$ ceil$(1,2)])$;