Who is Dave looking ______？

His mother．She's been in hospital for a few days．（　　）

A．forB．afterC．atD．up

Look!So many colorful bicycles in two lines over there．

They're for public．This ______ of green smart traffic is everywhere in Xiangyang city．（　　）

A．numberB．pairC．kindD．piece

I can't stand swimming in cold rivers in winter．

But it's ______ for your health．You know I often swim in rivers in different seasons．（　　）

A．helpfulB．harmfulC．painfulD．careful

You like to drink coffee，don't you？

Yes．But I'm ______ drinking tea，too．（　　）

A．able toB．similar toC．used toD．ready to

Where is Xi's Family Garden（习家池）？

It ______ 5 km south to the Old City of Xiangyang．（　　）

A．liesB．livesC．laysD．lists