Xi’an is ______ most beautiful tourist city and I believe I’ll come for _______ second time.
| A．the; a | B．a; a | C．the; the | D．a; the |
What the doctors really doubt is _____my mother will recover from the serious disease soon.
| A．when | B．how | C．whether | D．why |
_____we’ll go camping tomorrow depends on the weather.
| A．If | B．Whether | C．That | D．Where |
Does _______ matter if he can't finish the job on time?
| A．this | B．that | C．he | D．it |
I hate _____when people talk with their mouths full.
| A．it | B．that | C．this | D．them |
It worried her a bit ______her hair was turning grey.
| A．while | B．if | C．that | D．for |