6. to drive
7. to help
8. /
9. To be
10. /
11. to travel
An infinitive is an essential form of a verb, always in the form of TO + verb. It gives us a basic, impersonal, dictionary form of the verb, which provides us with its meaning. In a sentence, it can complement certain verbs with incomplete meaning, such as modal verbs (e.g. I have to go), or express a purpose of some other verbs (e.g. I went to buy groceries).
1st bubble ifzotxotdotxoxtoxotxotx9
Explanation:
Thunderstorms arise when layers of warm, moist air rise in a large, swift updraft to cooler regions of the atmosphere. There the moisture contained in the updraft condenses to form towering cumulonimbus clouds and, eventually, precipitation.
Answer:B: the valve of promise