10 Choose the correct answers.
1
5
that the first mobile phone call happened more than
forty years ago? When Martin Cooper ? the call on
3 April 1973, his phone like the mobile phones we use
today. It
thin and stylish like a smartphone, and he
put it in his pocket because it was too big. Instead, he
had to carry the 1.1 kg phone in one hand and its enormous
battery in the other. The phone had a keypad with numbers,
not a 6
for making calls. Today's mobile phones are
more like computers than telephones. Most homes have
, which make it easy to connect to the internet. This
means that we can all kinds of files. We can listen to
music on our phones, or send the music to for
everyone to hear. The only problem with today's
smartphones is that we never seem to them off.
7
2
10
1 a You know b Did you know C You knew
2 a made b make
c makes
3 a doesn't look b not look c didn't look
4 a not be b wasn't
c didn't be
5 a couldn't b didn't can с not could
6 a case
b monitor c touch-screen
7 a chargers b printers c routers
8 a download b enter
c install
9 a built-in 4G b motion sensors c wireless speakers
10 a break
b turn
clog
710