Question

we don't have anything to eat

We _____anything to eat.A.doesn't have B.don't have C.doesn't has D.don't be
My sister _____a new bike.A.have B.has C.is D.are

Answer 1

1.B
主语是We ,所以助动词用 don't .句意是：我们没有吃的东西.
2.B
主语是My sister ,是第三人称单数,所以动词用has .
意思是：我姐姐有一辆新自行车.