It is not socially ________ for parents to leave children unattended at that age．

A．accessible

B．adorable

C．adaptable

D．acceptable

I can't say which wine is best－it's a(n)________ of personal taste．

A．affair

B．event

C．matter

D．variety

It's the sort of work that ________ a high level of concentration．

A．calls for

B．makes up

C．lies in

D．stands for

－I missed my girlfriend's telephone．You know she only calls me once a week from the United States．

－________．

A．You are so careless．

B．I am sorry to hear that．

C．You shouldn't have been out．

D．What a pity!

－I am afraid I must be off now, and thank you for the wonderful meal．

－________．

A．You are welcome

B．Glad you enjoyed it

C．I hope to see you as soon as possible

D．I'm not good at cooking

－Thank you for the great trouble you have taken helping me carry such a big box upstairs．

－________．

A．I am younger than you

B．It's my duty

C．It's my pleasure

D．It's a piece of cake

－May I take your order now?

－________．

A．No, I don't have a choice of meat

B．Yes, soldiers must obey orders

C．Yes, I'd like some fish and chips

D．No, everything is in order now

－Will you be able to finish the work this week?

－________．

A．I can't say so

B．I'm not sure so

C．I don't expect so

D．I don't know so

－Are you going back to your hotel, Mr．Green?If you are, I can give you a lift．

－It's very kind of you, but they're going to drive me to the hotel．________．

A．Thank you

B．No, I won't

C．No, I don't

D．Thank you just the same

－How is everything going?

－________．

A．Everything has been done

B．Not so bad, you know

C．Everything is over

D．I am not doing anything wrong