Ex20:
Hi Rosa,
Greetings from Osaka! Hope this finds you all well. I suppose by now school (1) will have closed for Christmas and you (2) will be enjoying a rest. It's hard to believe that Tim's already 18 and that it's only a few months until he (3) will be leaving school for college.
My main news is that my brother, Joe, and his family (4) will be arriving next Friday as part of their big trip around the world. By the time they get here they (5) will have been going to California and New Zealand. No doubt Joe's children (6) will have been planning it all out for months! They (7) won't be spending all their time with me. Joe has to go to Tokyo on business, so I (8) will be keeping the rest of the family entertained while he's away. Then they (9) will all be going to Kyoto
Ex21:
10.Our science teacher never remembers to correct our homework!
=> Our science teacher is always forgetting to correct our homework!
11.I have an appointment to see the doctor at four o'clock.
=> I am seeing the doctor at four o'clock.
12.The 100-metre runner is about to break her world record!
=> The 100-metre runner is on the verge of breaking her world record!
13.I need three months to finish my assignment.
=> In three months, I will have finished my assignment.
14.The last time I failed a test was at primary school!
=> I haven't failed a test since primary school!
15.Oliver and William have arranged to visit the planetarium today.
=>Oliver and William are visiting the planetarium today
