Excuse me, sir. Here’s a package for Lin Tao. Which room does he live in?—————.

____ do you study for a math test? —I study math ____ lots of exercises.

Trees provide food and shelter and make us ______ comfortable.

Can you tell me _______to talk to and ________to get help when we have problems?

How soon will you start your journey? —I’m not sure. I haven’t decided_____.