__________hard you try, it is difficult to lose weight without cutting down the amount you eat. A Whatever B Whichever C However D Whenever
--- Sorry, do you mind if I smoke here? --- Yes, ______.
Although she had been ill for a long time, it still came as a shock when she ______ died.
--- I am so sorry to have come late for the meeting. --- It is not your fault. With ______ rush-hour traffic and ______ heavy rain, it is no wonder you were late.
______ in the street, a terrible car accident happened, resulting in three deaths.
______, and we’ll arrive in Hangzhou, where we can enjoy the beauty of the West Lake.