Great changes ______ in our hometown in the past ten years. A. have taken place B. have been taken place C. were taken place
—Why are there so many ants on the cake? —Because ants smell things _________.
—The children are so afraid. Shall we ________the bush to find the ghost? —OK, let’s have a look. There may be something strange.
Suddenly, they heard ______ whisper from the bushes behind _______tree on the left.
—Do you like to sleep with the windows ________? —Yes, I’d like to feel the air and wind.
---Can we swim in the river? ---_______. It's dangerous to swim here.