1)The doctor knew the partient ... wella)are progressingb)progressc)have

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