English is understood all over the world_____ Turkish is spoken by only a few people outside Turkey itself.
| A．while | B．when | C．as | D．since |
----Would it be _____ for you to help me take my luggage to the area where taxis are available? ---- With pleasure.
| A．free | B．available |
| C．handy | D．convenient |
My father is knowledgeable. Whenever we plan our vocation, he always offers_______ suggestions.
| A．practical | B．stable |
| C．innocent | D．bearable |
He was told that it would be at least three years ____ he could recover and return to work.
| A．when | B．before |
| C．since | D．that |
He is a person exact in time and very careful, and he never _______ any little items.
| A．notices | B．deletes |
| C．undertakes | D．overlooks |
--- How do you know he is from Scotland?
--- Well, his special accent _________ when he spoke.
| A．appeared | B．showed |
| C．betrayed | D．displayed |