Imperative sentences usually end with a period but can occasionally end with an exclamation point. These sentences are sometimes referred to as directives because they provide direction to whomever is being addressed.
Below, you'll find some examples of imperative sentences. Note that each line is issuing a command of some sort.
Pass the salt.
Move out of my way!
Shut the front door.
Find my leather jacket.
Be there at five.
Clean your room.
Complete these by tomorrow.
Consider the red dress.
Wait for me.
Get out!
Make sure you pack warm clothes.
Choose Eamonn, not Seamus.
Please be quiet.
Be nice to your friends.
Play ball!
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.