單項選擇 Tom often ( ) TV on Saturday evenings,but now he is ( )

題目：

單項選擇 Tom often ( ) TV on Saturday evenings,but now he is ( ) stories.A.watches；reading
B.watching；reads
C.looks；reading
D.watches；looking

解答：

D.watches；looking
前面是一般現在時態,後面用現在進行時態