I wonder how many years ago _____.
I wonder how many years ago \_\_\_\__.
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John didn’t want to risk _____ wet as he had only one suit.
John didn’t want to risk \_\_\_\__ wet as he had only one suit.
The Philippines _____ to the south-east of China.
The Philippines \_\_\_\__ to the south-east of China.
Mr. Green _____ my letter, otherwise he would have replied before now.
Mr. Green \_\_\_\__ my letter, otherwise he would have replied before now.
We all agreed to her suggestion that we _____ to the Great Wall for sightseeing.
We all agreed to her suggestion that we \_\_\_\__ to the Great Wall for sightseeing.
By next month they _____ in the country for eight years.
By next month they \_\_\_\__ in the country for eight years.
