1. What time do we have to be at the gate ? _____ passengers are already boarding.
A. hurriedly B. Soon C Immediately D. Since
2. Students in Xiangshan Senior High School are walking along the street,_____a small flag.
A. they each hold B. each holds C each of them holds D . each holding
3.oh, Richard,why ___you always do the opposite of what I tell you ?
A. must B may C . should D. can
