Modal Verbs + Have+Past Participle

It`s good to see you. I was afraid you _____________ lost.

I can`t find that e-mail anywhere. I think I _______________ it.

I _____ my wallet in the restaurant. I paid for the taxi home afterwards.

It is still a mystery how the robber gained access to the bank. Police are investigating whether the suspect _____ known one of the employees.

Oh no! My phone's not in my bag. I _____ left it at home.

I explained the homework but she did the wrong page. She _____ misunderstood me.

He _____ gone to France. He didn't have a passport.

Let's ask at reception to see if they have your keys. Someone _____ found them.

You _____ seen her, surely! She was standing right in front of you.

Why were there no buses yesterday? Maybe it was the snow or they _____ been on strike.

We don't know for sure that Alex broke the coffee table. It ________been the dog.

She __________ driven there. Her car keys are still here.

He _________  French. His French is terrible.

I didn't know you needed help. You ___________me.

The phone is ringing. It________ Mary. She promised she would call.

I am so tired. I need some rest. I think I_______ take a week off.

She __________ to any college she wanted to. But she preferred working.

I was so worried about you. You _______________ !

I got really wet walking home last night, I_____________an umbrella.

They ________________  it today because the shops are closed.