_______, when Marx was already _______, he found it was important to study the situation in Russia, so he began to learn Russian.
A. In 1870s, in his fifties
B. In 1870s, in fifties
C. In the 1870s, in fifties
D. In the 1870s, in his fifties
---Where is Linda? I can’t find her anywhere. ---She ______ the flowers in the garden.
A. waters B. is watering
C. watered D. has watered
If we ______ take environmental problems seriously, the earth _______ worse and worse.
A．don’t; will be B．won’t; isn’t
C．won’t; is D．don’t; won’t be
---How do you like the talk show?
---I think it’s __________, but some people think it’s so _________.
A. wonderful enough; bored
B. enough wonderful; boring
C. wonderful enough; boring
D. enough wonderful; bored
My coat costs little. What about ________?
―_______ is expensive.
A. you, It B. him, His
C. yours, Mine D. hers, She
She got a nice skirt as a present on her birthday．Do you know _______ ？
A．what was it made of
B．how much did it cost
C．who buys it for her
D．where she bought it
