一、单项选择在A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑．（本大题共14小题，每小题1分，共14分）
1．I don't like ____________ of the dresses．Could you please show me a third one？（ ）
A．both B．all C．either D．neither
2．﹣How can you be excused for such a ____________ reason？
﹣I don't care whether you accept it or not．（ ）
A．special B．silly C．serious D．shy
3．Mary is on time for everything．How ____________ be that she was late for the meeting？（ ）
A．can B．must C．may D．should
4．The energy from the sun and wind is very cheap and it will never ________．（ ）
