________ hard you try, it is difficult to lose weight without cutting down the amount you eat．

A．However

B．Whatever

C．Whichever

D．Whenever

The lecture, ________ at 7∶00 pm laze night, was followed by an observation of the moon with telescopes．

A．starting

B．being started

C．to start

D．to be started

It was not until I came here ________ I realized this place was famous for not only its beauty but also its weather．

A．who

B．that

C．where

D．before

Sorry, I am too busy now．If I ________ time, I would certainly go for an outing with you．

A．have had

B．had had

C．have

D．had

________ I always felt I would pass the exam, I never thought I would get an A．

A．While

B．Once

C．If

D．Until

"The moment ________ soon,"he thought to himself, waiting nervously．

A．came

B．has tome

C．was coming

D．is coming

Everyone in the village is very friendly．It doesn't matter ________ you have lived there for a short or a long time．

A．why

B．how

C．whether

D．when

Close the door of fear behind you, and you ________ the door of faith open before you．

A．saw

B．have seen

C．will see

D．are seeing

Bicycling is good exercise; ________, it does not pollute the air．

A．nevertheless

B．besides

C．otherwise

D．therefore

Time, ________ correctly, is money in the bank．

A．to use

B．used

C．using

D．use