some qustions about subjunctive

Tell me what you think and i will tell you if you are right. You will never learn if other people do your homework.

am i right?
My answers to those three questions are as follow:1.D.have not watched
2.C.would be 3.B.sends

Hi Annna 0314

The answers are

1. A

The house master was strict. he requested that we not watch television on week nights.

2. A

The teacher insisted that we all be back by two o'clock.

3. You did not ask a question 3!

Hi contrex,
thank you for your answers,but could you tell me why we should choose these answers,and my third qustion is "the idea is that the nation__an unmanned spacecraft to explore the planet first."
A.sent B.sends C.send D.must send

The English subjunctive has a present and past form. The present form is formed by the the base form of the verb. (Minus the word "to", so the base form, and hence the present subjunctive, of the verb "to watch" is "watch"). The past subjunctive is identical with the past tense except in the case of the verb be, which uses were for all persons: If I were rich …, If he were rich …, If they were rich….

Therefore,

The housemaster was strict. He requested that we not watch television.

So A is the correct answer. B is wrong because it is not English. C is not English either. D is the past tense (not subjunctive) and would be nonsense in the sentence in the question.

2. The teacher insisted that we all ___back by two o'clock.
A.be B .to be C.would be D.shall be

The subjunctive of the verb "to be" is "be" so-

A is the correct answer - that we be back.

3. The idea is that the nation ___an unmanned spacecraft to explore the planet first.
A .sent B.sends C.send D.must send

The subjunctive of "to send" is "send", so C is the right answer.

oh!I SEE! Thank you very much