It's said that the police ___ (try)their best to find the missing travelers these days.We ___ (organize) a school trip to the park unless it rains this Saturday.

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It''ssaidthatthepolice___(try)theirbesttofindthemissingtravelersthesedays.We___(organize)aschooltript

It's said that the police ___ (try)their best to find the missing travelers these days.We ___ (organize) a school trip to the park unless it rains this Saturday.
It's said that the police ___ (try)their best to find the missing travelers these days.
We ___ (organize) a school trip to the park unless it rains this Saturday.

It's said that the police ___ (try)their best to find the missing travelers these days.We ___ (organize) a school trip to the park unless it rains this Saturday.
if (mysqli_connect_errno())
{
echo 'Error:Could not connect to database.Please try again later.';
exit;
}
这个是检查PHP是否连接上MYSQL,就是一个判断函数