1¡D—The place isn’t s a bit too crowded.„S- ____ it may not be very popular.
    A.No, but      B.Yes, though     C.No, because     D.Yes, yet
2¡DFive minutes earlier,_____ we could have caught the last train.
    A.but          B.and             C.so              D.or
3¡DThey may go to London, but they are not certain______.
    A.still        B.yet             C.already         D.however