Question

Before, She ________ lots of sweet snacks but now she seldom ________ them.

1. A.
   have had
2. B.
   had, has
3. C.
   ate, eat
4. D.
   ate, had

Answer 1

B
“before”过去式用“had”，“now”和“seldom”表示一般现在时而且she是第三人称单数故选B。