Shangri-la, a place of mystery and beauty, is indeed a heavenly world ________ people live in perfect harmony with nature.
It is getting late. I am afraid I must be going now! OK,________________
The children are full of ______. They have been playing all day long without resting.
I am considering changing to a more interesting job, as the present job, which requires a lot of _______, nearly bores me to death.
___________ made his mother worried.
There is some doubt _________ Mr Zhang will sign the contract with us.