—She looks very happy. She ________ have passed the exam.—I guess so. It's not difficult after all.
On AIDS Day, the minister of Health Department demanded that the problems __________ paid special attention to.
It is widely __________ that the government should take effective measures to reduce the poor-rich gap, which is approaching the alarming line.
I __________ my homework yesterday, but unfortunately I forgot about it totally.
Some insects __________ the color of their surroundings to protect themselves.
Do you wake up every morning __________ energetic and ready to start a new day?