<p><strong>Robin:</strong><span> I think the waiter (forget) </span><strong><span id="GapSpan0" class="GapSpan">has forgotten</span></strong><span> us. We (wait) </span><strong><span id="GapSpan1" class="GapSpan">have been waiting</span></strong><span> here for over half an hour and nobody (take) </span><strong><span id="GapSpan2" class="GapSpan">has taken</span></strong><span> our order yet. </span><br /><br /><strong>Michele:</strong><span> I think you're right. He (walk) </span><strong><span id="GapSpan3" class="GapSpan">has walked</span></strong><span> by us at least twenty times. He probably thinks we (order, already) </span><strong><span id="GapSpan4" class="GapSpan">have already ordered</span></strong><span>. </span><br /><br /><strong>Robin:</strong><span> Look at that couple over there, they (be, only) </span><strong><span id="GapSpan5" class="GapSpan">have only been</span></strong><span> here for five or ten minutes and they already have their food. </span><br /><br /><strong>Michele:</strong><span> He must realize we (order, not) </span><strong><span id="GapSpan6" class="GapSpan">have not ordered</span></strong><span> yet! We (sit) </span><strong><span id="GapSpan7" class="GapSpan">have been sitting</span></strong><span> here for over half an hour staring at him. </span><br /><br /><strong>Robin:</strong><span> I don't know if he (notice, even) </span><strong><span id="GapSpan8" class="GapSpan">has even noticed</span></strong><span> us. He (run) </span><strong><span id="GapSpan9" class="GapSpan">has been running</span></strong><span> from table to table taking orders and serving food. </span><br /><br /><strong>Michele:</strong><span> That's true, and he (look, not) </span><strong><span id="GapSpan10" class="GapSpan">has not looked</span></strong><span> in our direction once.</span></p>