1. A. By the time I finish school, I'll have been extremely tired.
B. He'll have studied all the lesson by the end of the day.
C. By the end of 2010, things will have changed a lot.
D. Until the end of evening, we will have finished the last examination.
E. By the evening of the next year, we will have accomplished another step.
2. a) The book which I bought is just wonderful.
b) She walked the dog which dug a hole in your back yard.
c) He is the scientist who works were published.
e) That is the lady to whom I was talking the other day.
f) He is the scientist who published many books.
g) The concert which they watched last night was wonderful.
h) The group which I took part is presenting a report.
i) The member of the group whom I met at school, was sick.
j) The boy whose bicycle was stolen called the police.
3. a) The performance which I attended last night was marvelous.
b) She is the girl who speaks English and French fluently.
c) I like people who always tell the truth.
d) They are the pioneers who arrived here at first.
e) Here is the book whose cover has your name on it.
4. a) If we eat too much fat, we might gain weight.
b) You may be sick if you have a low grade fever constantly.
c) They are going to have problems if they keep on breaking into abandoned houses.
d) If my parents have money, they will travel abroad.
e) I will get wasted next weekend if I pass my examination test.
