A．as carefully as

B．so careful as

C．as careful as

D．so carefully as

A．She is good at tennis

B．She is tall and thin

C．She likes playing with us

D．She is kind to us

A．practise speak

B．to practise speaking

C．to practise to speak

D．practising speaking

A．haven't decided

B．won't decide

C．am not decided

D．didn't decide

A．what to mend

B．how to mend

C．what mend

D．how mend

A．interesting; interesting

B．interested; interested

C．interesting; interested

D．interested; interesting

A．yet

B．also

C．already

D．too

A．happening; past

B．happen; passed

C．happen; past

D．to happen; passed