REWRITE THE SENTENCES, USING GERUND PHRASE:
1- Tom finds it difficult to meet people.
-->It is difficult for Tom to meet people.
2- You are not allowed to smoke here.
-->You are not let be smoked here.
3- She bowed her head but she did not speak.
-->although She bowed her head , she did not speak
4- It was wonderful to see our old friend again.
-->It was wonderful so that we could see our old friend again.
5- It is cheaper to go by rail than by air.
-->going by rail than by air is cheaper
7- The young man hasitated before he answered.
-->After The young man had hasitated, he answered
8- It's more difficult to speak a foreign language than to read it.
-->speaking a foreign language than to read it is more difficult