英语语法题目 ...[a] He (be) 1 ____________________ a newspaper rep

英语语法题目 ...
[a] He (be) 1 ____________________ a newspaper reporter before he (become) 2 ____________________ a businessman.
[b] Class (begin,already) 3 ____________________ by the time I (get) 4____________________ there,so I (take,quietly)
5 ____________________ a seat in the back.
[c] Millions of years ago,dinosaurs (roam) 6 ____________________ the earth,but they (become) 7 ____________________ extinct by the time humankind first (appear) 8 ____________________.
[d] It is midnight.I (study) 9 ____________________ for five straight hours.No wonder I’m getting tired.
[e] George suddenly realised that the teacher was asking him a question.He couldn’t answer because he (daydream) 10 ____________________ for the last ten minutes.
(f)Interms of what is (understand)______about the activity described,you may want to write a proper essay for this course.
(g)the student(be)(make)_____the same mistake for the last few months,
(h)they are not coming to school,(be)____they?
(i)twenty-two percent of the participants of race (be)______females.
(j)ahmad drives to work every morning.However,yesterday he (take) ____ a bus to work.
(k)ramachandran,as well as his two friends,(be)(miss)________for the last 2 days in the jungle.
(l)by the time my father arrives to pick me up tomorrow,i (pack) ______my personal belongings.
(m)Every boy and girl in the school (be) (ask) _______to complete the form two months ago.
(n)reading novel and poetry(be)_____different from reading non-fiction or factual information.