According to an agreement between civil aviation associations of the Mainland and Taiwan

问题补充：

According to an agreement between civil aviation associations of the Mainland and Taiwan, the direct chartered flights are scheduled to run from Jan.20 through to Feb.13 this year.

A. to reach

B. reached

C. reaching

D. reach

答案：

A. to reach

(答案→)B. reached

C. reaching

D. reach

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