Question

Whenever he makes a promise, he will ________ it.

1. A.
   keep out
2. B.
   insist on
3. C.
   stick to
4. D.
   stick at

Answer 1

C
stick to作“坚持”解，多用于表示坚持计划、决定、原则、诺言等，有执意不改变的意思。其中to是介词；insist on也有“坚持”的意思，但多用于表示坚持意见、要求、主张等。如：he insisted on my going there.另外，insist后接宾语从句时，从句谓语动词要用虚拟语气，表示“坚持要、坚持要求等。如：He insisted that the work (should) be finished before dark.但当“坚持说，坚持认为”时，从句用陈述语气。如：He insisted that he had done quite right.