Помогите, прошу! Use the correct tense - forms of the verbs

Помогите, прошу!

Use the correct tense - forms of the verbs in brackets.

We (not to buy) it if we do not get the money by tomorrow.
1 (to be) late this morning because I could not find the key.
1 completely forgot that I (to arrange) to see the reporter in the afternoon.
This company (to produce) these cars since 1978.
I (to walk) along the street hen I heard a loud crash.
Biology never (to be) one of my favourite subjects.
In recent years the company (to put) a lot of money into developing advanced technology.