Past simple vs. continous

I ___________ (sleep) when you _________ (come).

Jack ______________ (have) a shower when the telephone _____________ (ring).

Yesterday at 12 o´clock, I ___________ (eat) a lunch.

She _____________ (watch) TV when they ____________ (arrive).

It __________ (start) to rain when the children ____________ (play) in the park.

He ___________ (come), switched on the PC and ____________ (check) his e-mails.

We ______________ (sit) in the café when you _______________ (call).

While she ____________ (lay) on the beach, she ____________ (hear) a strange noise.

Yesterday at 5 p.m., I ______________ (write) a letter.

We ___________ (walk) along the river when the kid ____________ (jump) into it.