________ no need to worry about his safety, because he is always careful．

A．What’s

B．It’s

C．There’s

D．Which’s

－This store has such high prices．

－I agree．Never again ________ here．

A．I will shop

B．I do shop

C．will I shop

D．shop I do

－I think I’ll give Bob a ring．

－You ________．You haven’t been in touch with him for ages．

A．will

B．may

C．have to

D．should

The flowers ________ sweet in the botanical garden attract the visitors to the beauty of nature．

A．smell

B．smelling

C．smelt

D．to be smelt

Microsoft's next major operating system, Windows Vista, looks ________from today's Windows．

A．different

B．differently

C．difference

D．differences

－What time do we have to be at the gate?

－________ passengers are already boarding．

A．Hurriedly

B．Soon

C．Immediately

D．Since

What`s really needed, according to most researchers in this field, ________ a "killer" application particularly suited for the way DNA computing solves problems．

A．being

B．are

C．is

D．was

In May l999, the Backstreet Boys, sold l, l33, 505 copies of their latest album in its first week in release, ________ it the most albums sold in a week, ever since Sound-Scan began recording sales figures．

A．to make

B．making

C．that makes

D．made

－How are you managing to do your work with an assistant?

－Well, I ________ somehow．

A．get along

B．come on

C．watch out

D．set off

－Your job ________ open for your return．

－Thanks．

A．will be kept

B．will keep

C．had kept

D．had been kept