Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
His visit is intended to （ ） ties between the two countries. (strength)
【正确答案】：STRENGTHEN
【题目解析】：
根据前文intended to（旨在去做某事）说明空格处应该填动词，strength的动词形式为strengthen加强，符合句意。
句意：他的访问旨在加强两国之间的关系。