Question

1)The doctor knew the partient ... well
a)are progressing
b)progress
c)have progressed
d)progresses
e)was progressing

2)When we saw him he ... the roses
a)water
b)waters
c)is watering
d)was watering
e)was being watered

3)I saw that I ... speak louder to make myself heard.
a)has to
b)am allowed to
c)have to
d)are to
e)am able to

4) I ... understand why she didn't come.
a)could not
b)may not
c)might not
d)must not
e) is not able to

Answer 1

1)c have progressed
2)d was watering
3)c have to
4)a could not

Answer 2

1) e was progressing
2)d was watering
3)c have to ( по согласованию времён должно быть had to)
4)a could not