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(Looking) for (Looked) for, we (haven't bought) I (bought) You (did) I (read) It (was). You were (reading) Where (was) He (worked) He was (working) there (Waiting) for I (was waiting) for Jack. I've been (waiting) for him since They (stand) They (were talking) about What you (thinking) of I was (thinking) of our The girls (are singing) in the They were singing since I walked in.

1 what are you looking for?    are looking, haven't bought    have bought 2 are you doing    I'm reading      is, have you been reading 3 is    is working    has been working 4 are you waiting    am waiting, have been waiting 5 have been standing    have they been talking 6 are you thinking    am thinking 7 are singing    have been thinking, have walked