Language point: should, must, have to 4 Look at sentences 1-5 and read the
rules. Then change the words in blue
using your own ideas.
1. You shouldn't smoke. It's dangerous.
2 You mustn't take drugs. It's illegal.
3 You don't have to diet. It isn't healthy.
4 You have to give your opinion.
5 The message should be clearer.
The patent was granted (35)А) on March 7, 1876. Three days later, Bell's
assistant became the first person to receive a phone call. Bell, who (36) D) had spilled acid on his clothes, called over the phone, "Mr Watson, come here. I want you." Just over a year (37) D) later , the first telephone line was installed.