Sorry, you lost your purse; I hope it will some day.
| A．turn out | B．show off | C．show up | D．turn up |
I have heard a lot of good things about you I came back from abroad.
| A．since | B．until | C．before | D．when |
He wrote a letter ______ he explains what had happened in the accident.
| A．what | B．which | C．where | D．how |
Do not let any failures discourage you, for you can never tell ________ close you may be to victory.
| A．how | B．that | C．which | D．where |
Microblog is a platform ________ people can express their thoughts and communicate with each other by sending posts.
| A．which | B．where | C．what | D．when |
It was not until 1938 _________ the first colour TV programme was broadcast.
| A．which | B．that | C．when | D．on which |