Use Of English 2012 Jamb Examination

The sentence reads, 'Sometimes there are no signs or symptoms of miscarriage ... and the miscarriage only ___ in a routine scan.' The phrase implies that the miscarriage is detected during a medical examination. The verb 'discovered' correctly conveys this meaning. Other options like 'prevented' or 'stopped' are not contextually accurate.
Therefore, 'discovered' is the best fit.

The sentence discusses 'a problem in the way the genetic material from the egg and sperm have combined during ___.' The combination of egg and sperm occurs during 'fertilization,' not pregnancy or incubation. 'Mating' refers to the act of reproduction, not the cellular combination.
Hence, 'fertilization' is the correct answer.

The phrase reads, 'It can be difficult to find out why this has ___.' The word needed should indicate that something happened. 'Occurred' appropriately conveys that the event took place. 'Enlarged' and 'emerged' do not fit grammatically, and 'continued' changes the intended meaning.
Therefore, 'occurred' is correct.

The sentence says, 'Imbalances in pregnancy hormones, problems in the immune ___, and some serious infections...' The immune 'system' is the correct collocation in English. Other options like 'syndrome' or 'process' are scientifically inaccurate here.
Thus, 'system' best completes the meaning.

The passage says, 'The risk of miscarriage ___ with age because the quality of eggs deteriorates.' Since deterioration implies a higher chance of miscarriage, the appropriate word is 'increases.' Other options like 'reduces' or 'appears' contradict the context.
Hence, 'increase' is the correct choice.

The sentence reads, 'It is also increased with ___ pregnancies such as twins.' Pregnancies involving twins or more than one foetus are referred to as 'multiple pregnancies.' This term accurately fits the medical description.
Therefore, 'multiple' is the correct answer.