Question

---Tom, don’t drive too fast, you ________ hit the other’s cars.

---OK, I won’t. Mum.

1. A.
   must
2. B.
   need
3. C.
   may
4. D.
   have to

Answer 1

C
这里的may表示一件事或许会发生或可能会存在。其余选项不具备此意。