Well, yes you do, but if you have trouble writing complete sentences, here is a worksheet to test your ability (and make suggestions to improve your ability). Really! Just try it.
I hope you did well on the worksheet. but if you struggled, no worries. English is a difficult language to learn. So stop by this website next week for another worksheet. Remember, practice makes perfect. Keep learning.
Source: Sentence Completion 1 (englishforeveryone.org)
