She's been dead ________ the morning of 26^th April．

A．at

B．in

C．on

D．since

Mr．Bush is on time for everything．How ________ it be that he was late for the opening ceremony?

A．should

B．can

C．may

D．must

The houses of the rich are generally larger than ________ of the poor．

A．those

B．ones

C．the one

D．that

When the teacher came in, he saw some boys ________ behind Daniel, ________ the computer games．

A．sit, watching

B．sitting, watching

C．sit, to watch

D．sitting, watched

It ________ long ________ we know the result of the experiment．

A．will not be, before

B．is, after

C．will not be, until

D．is, before

He enjoys a cup of coffee in the afternoon sometimes, but ________ he drinks tea．

A．most

B．mostly

C．at most

D．almost

The number of children who have lost parents to AIDS ________ to rise to over 26 million in 2011．

A．are expected

B．is expecting

C．are expecting

D．is expected

The teacher found him ________ and gave him some different homework to do every day．

A．was clever

B．was a clever boy

C．a clever boy

D．clever boy

I wanted to buy a comic book like yours but there were ________ left at the bookshop．

A．no one

B．nothing

C．anyone

D．none

English is a language that many people around the world ________ not speak perfectly but ________ at least understand．

A．may, can

B．would, might

C．can, must

D．should, can