I haven't heard from Sam for a long time．Have you see him _________?

A．latest

B．lately

C．later

D．latter

My brother is really _________．He often works in his office far into the night．

A．open-minded

B．hard-working

C．self-confident

D．warm-hearted

To our _________, the boys _________ themselves by playing funny games．

A．amusement; amused

B．amused; amused

C．amuse; amusement

D．amusement; amusing

Don't be _________．You should share your toys with your brothers．

A．selfless

B．self

C．selfish

D．selflessly

You must put your heart into your students．Don't be _________ in class．

A．absent-minded

B．absent-minding

C．absent-mind

D．absence-minded

There is an old proverb, “Love me, love my dog．” But there is ________ wisdom in this：“Love me, love my book．”

A．some

B．much

C．more

D．most

“Things ________ never come again!” I couldn't help talking to myself．

A．lost

B．losing

C．to lose

D．have lost

Most birds find it safe to sleep in the trees, but ________ they have eggs or young chicks, they don't use a nest．

A．why

B．how

C．unless

D．where

By serving others, a person focuses on someone other than himself or herself, ________ can be very eye-opening and rewarding．

A．who

B．which

C．what

D．that

Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ________ English for a year．

A．studies

B．studied

C．is studying

D．has been studying