A. the problem of contructing a regular polygon of nine sides which…….(require) the trisection of 60 derajat angle…..(be) the second source of the famousproblem
b. the greeks ……(add) the trisection problem to their three famous unsolved problems.it…..(be) customary to emphasize the futile search of the greeks for the solution
c. the widespread availability ofcomputers. (have) in all ,probability changed theworld for ever
d. the microchip technology which….(make) the pc possible has put chips not only into computers,but also into wShing machines andcars
e. fermat almost certainly …..(write) the marginal note around 1630, when he first…(study) '
Thepresent simple or the pastsimple.put tge verbs in brackets in the correct froms.
Halo Jantisa30
A. requires, is
B. added, was
C. has
D. makes
E. wrote, studied
Present tense digunakan untuk menyatakan Fakta dan Habitual Actions. Sedangkan Past Tense untuk menceritakan kejadian di masa lalu.
Catatan: jangan lupa menambahkan 's' pada kata kerja Present Tense apabila subjeknya tunggal orang ketiga (he,she,it)