英语作业：Charles regretted _____the TV set last year .The price has now gone down

1、Charles regretted _____the TV set last year .The price has now gone down.(1分)
A、buying
B、
to buy
C、of
D、from

2、
I was satisfied with her explanation, _________.(1分)
A、
so my classmates were
B、
so were my classmates
C、
so my classmates did
D、so did my classmates

3、
There is such a lot of noise on the work site every day that the residents nearby find it hard to_______ . (1分)
A、put out
B、put off
C、put up with
D、
put up

4、Eggs, though rich in nourishments, have ______ of fat.(1分)
A、a large number
B、the large number
C、a large amount
D、
the large amount