Without facts, we cannot form a worthwhile opinion for we need to have a factual knowledge _______

Without facts, we cannot form a worthwhile opinion for we need to have a factual knowledge ________ our thinking.

#77320

which to base on

which to be based on

on which to be based

on which to base

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What we all know is that the old scientist, _______ life was hard in the past, still works very hard in his eighties.

#77354

for whom

for him

for whose

for which

 A team of American scientists has found a treatment to protect humans from the deadly H5N1 flu virus, ________ brings great ________ to the world.

#78452

that; appearance

which; relief

which; advantage

that; profit

Do you know the factory, __________ products are of high quality?

#77145

which

whose

that

its

The boy ______ is standing at the school gate is our monitor.

#76796

which

whose

who

when

---Where did you first meet your boyfriend?---It was in the department store ______ he worked.

#77777

which

that

what

where