The flowers _ _ sweet in the botanic garden attract the visitors to the beauty of nature.
Only when it is hungry ______ a human being.
Only _______ as an interpreter _______ how important it is to grasp English.
The physics teacher once said that we first _____the lightning followed by thunders because light ______ faster than sound.
You'd better _______ your score and see if you have passed the exam.
Would it be for you to pick me up at four o’clock and take me to the airport?