【题目】—By the time I got to the cinema, the film had already finished.

【题目】As we know, China was the first country in the world________.

【题目】—What is the mascot（吉祥物）of the 2020 Olympic Games?

【题目】—Are the beaches in Dalian beautiful?

【题目】In Beijing, people________to eat and drink on the subway.

【题目】The number of people invited ________fifty, but a number of them________ absent(缺席) for different reasons.

【题目】The tourists________have been to Mount Wuyi lost________in the beautiful scenery there.

【题目】—Can you________the sentences into clauses(分句)? —Yes, I can.

【题目】Three years and a half ________since I studied in the middle school.

【题目】Time is not enough for the work. Therefore, _______people are needed, I think.