A: Would you mind my smoking here? B: Look at that sign. It says, “No smoking.”
I don’t know how they ____the first couple of weeks after the strong earthquake.
I lost my way. I wonder ________ I can turn in the dark.
The professor kept telling us that the future _____ to the well-educated and I kept wondering where I _____ of it.
The genetic engineering, ______ progress has been very rapid recently, is perhaps the most important of all the sciences.
I don't think the experiment is _____ failure. At least we have got _____ experience for our future work on _____ nature.