—Which of the two pens are you going to buy?—I’ll buy _____of them, so I can give one to my friend.
—Do you ______ the idea of living a low-carbon life? —It sounds tough, but it is a tendency.
The public transportation in this city is very convenient, where many buses run ______.
The purse found on the playground matches the ______ by Mary, so it must be hers.
The road ______ for vehicles is under repair. Drivers are required to take some other routes.
—When shall we go planting trees in the hill? —______ it begins to rain, so they don’t need watering.