阅读下面短文，按照句子结构的语法性和上下文连续的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空，并将答案填写在答题卷标号为的相应位置上。

Roadside bomb explosions in southern Afghanistan have killed at least five civilians and five policemen. The attack came as NATO’s new Secretary General visited Kabul 小题1:  (discuss) with Afghan officials and candidates ahead of the August 20  小题2: (president) election.

Afghan officials in southern Helmans province said a group of civilians小题3: (travel) to a wedding party when 小题4: big vehicle, which was being pulled by a tractor, hit a roadside bomb.

Officials have blamed Taliban insurgents（叛乱分子）as part of efforts to discourage voters 小题5: taking part in the coming election.

Five policemen were also killed in a separate roadside bomb burst in Helmand,  小题6:region is a known Taliban stronghold（据点） 小题7:thousands of US Marines and British soldiers are engaged 小题8:major anti-insurgency operations to improve security小题9:Afghans go to vote.

The security situation deteriorating（恶化）in southern parts of the country has been a cause of concern for both Afghan election officials and international observers since the 小题10:(remove) of the Taliban from power in 2001.