The crux of the problem lies in the fact that we are comparing what refiners are paying this year with what they were paying last year. Here the 'paying' part is elided in the second arm. Please note the parallelism of progressive tense ‘are paying’ and ‘were paying’ in choices A and D.
Therefore, all choices that use the simple past tense ‘did’ are out. Between A and D, D has a problem of saying on one hand that it is an expectation and then a categorical 'will be higher'. Both are
...
Therefore, all choices that use the simple past tense ‘did’ are out. Between A and D, D has a problem of saying on one hand that it is an expectation and then a categorical 'will be higher'. Both are
...
![Madonna – Who’s That Girl (1987/2020) [FLAC 24bit/192kHz]](http://imghd.xyz/images/2023/06/08/0093624951148_6004dceff9e1db710a9.jpg)
