Present Simple vs Present Continuous

What is the present simple form of the verb "to be" (first person)? (a)  

• Am
• Is
• Are
• Be

She usually (go) to the gym in the morning.

• Go
• Is going
• Went
• Goes

They (play) tennis every weekend.

• Playing
• Played
• Plays
• Play

I (work) as a teacher.

• Working
• Worked
• Works
• Work

Look! It (rain) outside right now.

• Rains
• Raining
• Rain
• Rained

Tom (not like) vegetables.

• Not liked
• Not liking
• Doesn't like
• Don't like

How often (she/do) yoga?

• Does she do
• She doing
• She does
• She did

Sarah (read) a book at the moment.

• Reading
• Reads
• Read
• Is reading

He usually (drive) to work, but today he (take) the bus.

• Drives, takes
• Drives, took
• Driving, takes
• Driving, taken

It (not rain) often in this desert.

• Doesn't rain
• Not raining
• Not rains
• Don't rain