They tend to lose these traits because they ______ for production, not resilience.
- (a)had selected
- (b)have selected
- (c)are selected
- (d)might select
Correct — C, are selected. Cultivated populations do not do the choosing; they are chosen by breeders, so the verb must be passive — 'they are selected for production'. The simple-present passive also matches the general-truth tense of the surrounding clause ('tend to lose these traits'). It sharpens the contrast with the earlier natural selection: here it is humans, not nature, doing the selecting, and the plants receive that action.
- (a)had selected — Past-perfect ACTIVE — wrong voice (the populations are selected, they do not select) and wrong tense for a general truth.
- (b)have selected — Present-perfect ACTIVE — again active voice, wrongly casting the populations as the selectors rather than the selected.
- (d)might select —
Cloze / voice item: the populations receive the action of breeders, so the simple-present passive 'are selected' is required.
No directly related past PYQ was found.
- practice — not a real PYQ
Fill in the blank: These candidates ______ for the final round on the basis of merit.
- (a)have selected
- (b)are selected
- (c)selecting
- (d)had select
Answer(b) are selected — the candidates receive the action, so the present passive fits.
- practice — not a real PYQ
Choose the correct form: Show dogs ______ for appearance rather than working ability.
- (a)are bred
- (b)have bred
- (c)breeding
- (d)had bred
Answer(a) are bred — a habitual present action done TO the dogs needs the passive.