Having retired from business, he now ________ himself with the welfare of the disabled．

A．adapts

B．charges

C．associates

D．occupies

－He is in his late 40s now and still single．

－It’s high time he ________ himself a wife and settled down．

A．has to get

B．will get

C．got

D．gets

Will you help me out with this mathematical problem?I ________ it．

A．am going for

B．am stuck with

C．am blamed for

D．am caring for

The education of ________ young is always ________ hot and serious topic in modern society．

A．the;/

B．a; the

C．/; the

D．the; a

We ________ last night, but we went to the concert instead．

A．must have studied

B．might study

C．should have studied

D．would study

The continuous rain ________ the harvesting of the wheat by two weeks．

A．set off

B．set out

C．put back

D．set aside

To keep healthy, Professor Johnson ________ cycling as a regular form of exercise after he retired．

A．took up

B．caught on

C．carried on

D．made for

________ your proposal, I’m pleased to inform you that most committee members consider it acceptable．

A．Considering

B．Seeing

C．Supposing

D．Concerning

The little boy was sentenced to three years in prison for ________ of having stolen a lot of bikes．

A．accusing

B．having accused

C．being accused

D．being charged

The tiger is likely to come to attack our sheep, so we must ________ it．

A．keep an eye on

B．have an eye for

C．keep an eye out for

D．be careful of