Thousands of people have been moving to Shenzhen since 1992, its population to over 10,000,000.
The doctor __ my father not to smoke again.
Please ___ your new watch, or you’ll get it lost.
You should ___ the lights if there is no one in the room.
Save water as ___ as we can.
--What’s the time ___ your watch?---On, my watch ___ “A quarter to five”