Choose the best answer to complete the sentences  1. Did Nam...a lot of souvenirs for her friends yesterday?  A.bought  B.buy  C.buying  D.have buy 2. Excume , is there...bus stop near here? - Yes , it's over there, next to...pharmacy. A.a-the  B.an-the   C.the-a   D.the-an 3.If we can buy cheap tickets, we...travel by plane. A.would   B.shall    C.will not   D.will 4.If you...more, there will be less air pollution.  A.cycles   B.cycle  C.cycled   D.cycling 5.Australia is an interesting country . All of...big cities are along the coat. A.it  B.their  C.its  D.theirs