After ten hours’ drive, we came to ______ is called a green house, through the glass wall of _____, we saw lots of green plants.
A great number of visitors __________ attracted to my hometown, and the number of foreigners there _______ quite large.
Kathy told me that all the doors and windows _______ when she arrived this morning.
The woman, ____ eyes were filled with tears, expressed her thanks to the soldier who saved her son.
He used to be _____ shy but now he can talk freely to anyone he meets.
________ the machine begins to work, you can’t stop it _____.