It took a long time for the connection between body temperature and illness________.
.________ the sunlight for a long time is harmful to your skin.
______ in his book, he didn’t notice me when I entered the room.
The door is low, so ______ your head when you go in.
—Why is he feeling disappointed today? —Because the suggestion hehas been turned down.
What a mess!Tom,I have told you over and over again not to leave everything.