Present passive with modal verbs

My shoes need to _____(mend)

• be mended

• be mend

• be mending

• -

The entire valley can be ____ (see) from where I stand.

He is wearing a gold ring on his fourth finger. He ______ married.

• can be

• must be

• should be

• -

According to our teacher, all of our essay must be ___ (write) in pen. She won't accept papers written in pencil.

• wrote

• write

• written

• writing

I found this book on my desk when I came to class. It must _____ (have/leave) by one of the students in the earlier class.

A child ___ (not give) sweets everyday. It is not good for their health. (full sentence)

Some UFO sightings ___ (not explain) easily. No one is able to explain them easily.

• must not be explained

• cannot be explained

• should not be explained

• -

What?! You tripped over a chair at the party and dropped your food on your shirt?! You _____! (must/embarrass)

• -

• must have been embaras

• must have been embarrassed

• must have been embarrass

Too many empty plastic bottles _____ into the ocean. (throw)

Belts ____ of materials such as leather, plastic or cotton. (can/make)