Strong __________ can be very dangerous for swimmers.
We want to shock people into ____ that many smokers die all too soon from illness and diseases _____ smoking.
George Gould too visited the tomb, ____ a high fever the next day.
The best times to visit Shangri-la are spring and autumn ___ the temperature is at its mildest.
You have to wear a helmet and a life jacket for protection, just ___ you fall into the water.A. in case C. unless C. though D. as
Since we ____ for almost two weeks, I’ll need to buy a large backpack in advance to carry my supplies of food and water.