1 After being elected ______ President of ________ United States, Barack Obama moved with his family into ________ White House.
A. /; the; / B. /; the; the C. the; /; / D. /; an; the
2 Flu is a very ______ infectious disease. Fever, headaches, coughing and fatigue are some of its ______ symptoms.
A. normal; common B. usual; ordinary C. common; usual D. ordinary; normal
