Though he started late．Mr．Guo played the piano as well as,if ________．

A．not better than

B．not better

C．no better than

D．better

－Could I use your computer for a few moments, please?

－________．I’m not using it myself．

A．Come on

B．It depends

C．Go ahead

D．That’s great

The book was written in 1946, ________ the education system has witnessed great charges．

A．when

B．during which

C．since then

D．since when

The country has already sent up three unmanned spacecraft, the most recent ________ at the end of last March．

A．has been launched

B．having been launched

C．being launched

D．to be launched

They ________ two free tickets to Canada, otherwise they’d never have been able to afford to go．

A．had got

B．got

C．have got

D．get

It is not socially ________ for parents to leave children unattended at that age．

A．accessible

B．adorable

C．adaptable

D．acceptable

________ I really don’t like art, I find his work impressive．

A．As

B．Since

C．If

D．While

I have offered to point the house ________ a week’s accommodation．

A．in exchange for

B．with regard to

C．by means of

D．in place of

I can’t say which wine is beat－it’s a(n)________ of personal taste．

A．affair

B．event

C．matter

D．variety

________ worries me the way he keeps changing his mind．

A．This

B．That

C．What

D．It