—Do you like working as a waiter? —Yes, but I get tired ______ standing the whole day.
Don't handle the vase as if it ________ made of steel.
Jack is a great talker. It's high time that he ________ something instead of just talking.
—Where are the children? The dinner's going to be completely ruined. —I wish they______always late.
Eye doctors recommend that a child's first eye exam ________ at the age of six months old.
Had they known what was coming next, they ________ second thoughts.