A:以较小的速度驶过半径较大的桥;
B:以较小的速度驶过半径较小的桥;
C:以较大的速度驶过半径较大的桥;
D:以较大的速度驶过半径较小的桥.
Try to ________ half an hour each day for keeping a diary, and you'll achieve distinction in writing.