--___________.

①What are you going to do? {#blank#}1{#/blank#}       A. Yes, they are.

②Would you like to join us? {#blank#}2{#/blank#}      B. We're going to have a party.

③Are they going to come here? {#blank#}3{#/blank#}    C. David.

④Who else will help them? {#blank#}4{#/blank#}      D. They're workers.

⑤What are they? {#blank#}5{#/blank#}             E. We'd like to.

B: No. they don't. They usually walk after dinner.

— ________ I can't find a better one.

—I didn't sleep well last night. I had a headache.