31.----- Oh, my goodness! My laptop must have got stolen. ----- But where _____ a thief have entered the house with all the doors and windows still locked?
Let’s take _____ ten-minute break and have _______ drink of water.
He _______ us that everything would go according to plan, but it turned out a failure.
His sister left home in 1998, and since.
The weather in Beijing in winter is colder than in Fuzhou.
Although _____ to stop, he kept on working.