Student drivers are required to keep a log of their supervised driving hours. However, not all students are diligent in their record-keeping.
The transition that should be used to combine these sentences is the following one: however. This adverb is used to introduce a statement that contrasts with or appears to contradict something that has been previously said. In this case, you are saying that student drivers should keep a written record of their supervised driving hours yet you are also stating that not all of them do it thoroughly and well.
<span>however seems to be the most likely answer </span><span> Student drivers are required to keep a log of their supervised driving hours,however not all students are diligent in their record-keeping.</span><span> </span>
<span>The sentence that would stand out the most would be the first sentence. The first sentence is the one that most people read before going on to scan the rest of the paragraph.</span>
