What is the subject of the sentence?

The orchestra (has, have) recently completed a successful tour of several Asian countries.]]> Is the subject sentence singular or plural?

The orchestra (has, have) recently completed a successful tour of several Asian countries.]]> The orchestra has recently completed a successful tour of several Asian countries. Type the correct form of the words in parentheses into the box, then submit it and say the sentence.

The orchestra (has, have) recently completed a successful tour of several Asian countries.]]>