1.----I heard that as many as 100 people were killed in that coal mine accident.
 ----Yes,        news came as        shock to us.
A. the ; \         B. the ; a            C. \ ; a          D. \ ; \
2.----Will you join us in the game?      ----Thank you,        
A. but why not    B. but I'd rather not    C. and I won't    D. and I'll join
3.----Did you lock the door?           ----No, I       , but I forget.
A. should        B. must have         C. must         D. should have
4.We        the waiter        the price of the meal.
A. argued about ; with          B. argued with ; about    
C. quarreled about ; on          D. quarreled on ; with