Помогите пожалуйста:)1.choose the correct form of the verb 039;039;to be039;039; in

Помогите пожалуйста:)

1.choose the correct form of the verb ''to be'' in the present simple tense:

Mrs.Green___a teacher of English.
a) am
b) is
c) are
2.choose the correct form of the verb ''to be'' in the present simple tense:

There___a window and a door in this room.
a) is
b) are
3.choose the correct form of the verb ''to be'' in the past simple tense:

They___in Sochi in summer.
a) was
b) were
4.choose the correct form of the verb ''to be'' in the past simple tense:

How many children___there in the room?
a) was
b) were
5.choose the correct form of the verb ''to be'' in the present,past and future simple:

They___in Moscow tomorrow.
a) are
b) were
c) was
d) will be
6.choose the correct form of the verb ''to be'' in the present,past and future simple:

I___sure he___here in five minutes.
a) am;will be
b) am;is
c) is;am
d) will be;am