According to a new study by a British’s university , learning ______ second language can lead to ________ increase in your brain power.
| A．a ; the | B．不填；the | C．a ；an | D．the ；an |
—You don’t see the professor from Singapore quite often, do you?
—No, we only meet ______．
| A．eventually | B．constantly | C．occasionally | D．frequently |
Attempting to get home before dark, ___________
| A．Tom’s bike broke down on the way | B．it happened that Tom’s bike hit a car |
| C．a car knocked Tom off his bike | D．Tom knocked into a tree |
The house rent is high, I've got about half of the space I had at home and I'm going to pay ______here.
| A．as four times much | B．as much three times |
| C．much as three times | D．three times as much |
Much to the disappointment of the neighbouring countries, the Japanese government refuses to recognize _______ part they performed in _____ World War II in the history.
A．the; the B ×; the C．×; × D．the; ×
---The vase cost me almost 100 yuan.
---Well, it was crazy of you to spend so much money _____you could buy a much cheaper one.
| A．while | B．if | C．because | D．when |