sentence help~plz?

4.Choose the best word to complete each sentence.

1. Let's look at these ___ in more detail.

fractions
fissures
factors
factions
2. To _____ with, I would like to welcome you here today.

begin
greet
get on
make a start
3. Now, let's ___ on to the next point.

move
run
walk
drive
4. As you can see from this ___ , production is on the up and up.

raft
tab
graphic
graph
5. Our aim is to _____ the service that we offer you.

improve
encourage
increase
better
6. In ___, I believe that these steps will ensure customer satisfaction.

ending
summary
final
conclusion
7. The presentation is in three _____.

levels
stages
ranges
steps
8. How can we _____ with this problem? Well, we believe we have the answer.

deal
end
treat
erase
9. We can increase productivity _____ making working hours more flexible.

just
by
for
so
10. Please don't hesitate to contact us if you have any ___.

quizzes
enquiries
requirement
query