Some stars are not________ to the naked eye.

The Math problem is not________ for him to_________.

Yourmother was clearly not________ by our behaviour inthe restaurant.

If a proposal is not________, many practical problems may arise.

The arrangements, if not________, are fairly satisfactory. A: ultimate B: caring C: alternative D: ideal

If a proposal is not________, many practical problems may arise. A: urgent B: feasible C: debatable

I didn’t help him , not________ I was unwilling A: because B: since C: as D: for

Unemployment has come down slightly, but this does not________ the fact that it is still a major problem. A: react B: assume C: alter D: desire