1．i________along the street looking for a place to park when the accident________. a．went；was happening b．went；happened c．was going；happened d．was going；had happened 2．in ________ review of 44 studies，american researchers found that men and women who ate six key foods daily cut the risk of ________ heart disease by 76%. a．a；the b．the；a c．a；/ d．/；a 3．when i got there，he was________a wedding party. a．attending b．joining c．attending to d．joining in 4．—would you please help me with the box? —________. a．yes，please b．no，please don’t c．with pleasure d．my pleasure 5．—which doctor is________ your wound? —doctor wang. a．curing b．treating c．operating d．attending 6．the boy________by the police has no parents. a．questioned b．has been questioned c．having been questioned d．questioning
