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He lived in London for 3 months, during ______ time he learned some English.

A. this　　　 　　　　　　　 B. which

C. that　　　 　　　　　　　　 D. same

He lived in London for 3 months, during ____ time he learned some English.

A. this　　             B. which　            C. that　　         D. same

He lived in London for 3 months, during ____ time he learned some English.

He lived in London for 3 months, during         time he learned some English.

A．this   B．which       C．that   D．same

He lived in London for 3 months, during ____ time he learned some English.