单选题 Our company invited the world renowned movie critic, Elaine Lee. She will give a ______ of lectures, entitled "Movie: Happy Life", on March 10.
There will be no cost for this event. All employees are eligible to attend. ______ the admission to this event is free, employees are required to sign up in advance.
There is limited ______ at this event. Please sign up today for this remarkable event, and the deadline for registration is Tuesday, March 2. For more details, call Charlie Woods at extension 0360.
【正确答案】 B
【答案解析】[解析] 词汇：名词
1．这是一道词汇题。选项均为名词。
2．不能因为空格前出现不定冠词a，就将series排除。a series of意为“一连串的”，表示行为或讲座等持续举办。因此B为正确选项。
【正确答案】 D
【答案解析】[解析] 词汇：连词
1．这是一道词汇题，选项均为连词。
2．原文意思是“尽管免费但也需要提前登记”。D．Although(尽管)为正确选项。
【正确答案】 A
【答案解析】[解析] 单词形态：名词
1．空格内需填入一个由形容词limited修饰的名词。句子由There is开头，seat为复数形式因而排除。
2．seating是-ing形式的不可数名词，因此A为正确选项。