Question

David P. Abbot was a US magician who (a) _____ the basis of ball trick back in 1907. He (b) _____ to make a golden ball float around his parlour. Abbot (c)_____absentmindedly leave the ball on a bookshelf. Guests would sneak over the left ball and (d) _____ it was much heavier than a thread could support.

(a) (i) invent (ii) was invented (iii) invented (iv) has invented
(b) (i) used (ii) use (iii) had (iv) has
(c) (i) will (ii) would (iii) could (iv) may
(d) (i) finds (ii) found (iii) find (iv) have found

Answer 1

Answer:

a) invented

b)used

c) would

d)found