Write the verbs in the correct tense: past simple or present perfect. Use contractions when possible.
Technology (change) a great deal since computers were first introduced to the public in the 1980s. At first, computers (be) simple machines designed for the most basic tasks. These first computers (not have) much memory and they (be not) very fast. Customers often (pay) thousands of dollars for early computers which actually (do) very little. These computers (be) mostly used as typewriters or for playing games.
Fortunately, times (change) and nowadays computers (become) powerful machines with very practical applications. Programmers (create) a large selection of useful programs. People still play video games on them, but now they (become) faster and the graphics are much better. In addition, for the last few decades most computer users (use) the Internet to do many different things.
Respuestas a la pregunta
Technology changed a great deal since computers were first introduced to the public in the 1980s. At first, computers were simple machines designed for the most basic tasks. These first computers didn't have much memory and they weren't very fast. Customers often paid thousands of dollars for early computers which actually did very little. These computers were mostly used as typewriters or for playing games.
Fortunately, times changed and nowadays computers became powerful machines with very practical applications. Programmers create a large selection of useful programs. People still play video games on them, but now they are faster and the graphics are much better. In addition, for the last few decades most computer users use the Internet to do many different things.
Respuesta:
Technology has changed (change) a great deal since computers were first introduced to the public in the 1980s. At first, computers were (be) simple machines designed for the most basic tasks. These first computers didn't have (not have) much memory and they weren't (be not) very fast. Customers often paid (pay) thousands of dollars for early computers which actually did (do) very little. These computers were (be) mostly used as typewriters or for playing games.
Fortunately, times have changed (change) and nowadays computers have become (become) powerful machines with very practical applications. Programmers have created (create) a large selection of useful programs. People still play video games on them, but now they have become (become) faster and the graphics are much better. In addition, for the last few decades most computer users have used (use) the Internet to do many different things.
Explicación: