The moon ____ by man so far. A: is visited B: will be visited C: has been visited D: was visited

So far, the moon ______ by man. A: is visited B: will be visited C: has been visited D: was visited

The moon __________ many times by men so far. A: have been visited B: has been visited C: were visited D: was visited

I ______ the Summer Palace before, but I decided to visit it a second time. A: have visited B: visited C: hadn't visited D: had visited

York, ______ last year, is a nice old city A: that I visited B: which I visited C: where I visited D: in which I visited

This is the first time that I __________ Beijing. A: visited B: have visited C: ad visited D: am visiting

It is the first time that I ________ the beautiful city. A: visit B: visited C: have visited D: had visited

The Great Wall of China __________ by many people every year. A: visited B: visit C: was visited D: is visited

The best time ______ is September and October. A: to visit Tianjin B: visited Tianjin C: to have visited Tianjin D: to be visited Tianjin

They will go to America next month. That will be the first time that they ______ America. A: will visit B: had visited C: will have visited D: have visited