．Many in the credit industry expect that credit cards will eventually ________ paper money for almost every purchase.
A.exchange B.decrease C. trade D replace
Crossing roads without taking traffic lights into consideration, ________ they are part of a crowd, has been labeled as the “Chinese style of crossing roads.”
| A．since | B．as if |
| C．though | D．so long as |
—My son is addicted to computer games. He is hopeless, isn't he?
—Yes, ________ he is determined to give up and start all over.
| A．if | B．when |
| C．even if | D．unless |
It hasn't been made clear ________ the new underground line is to be open to traffic.
| A．when | B．that |
| C．what | D．where |
The tour pal lost his way in the mountain; ________ made things worse was that it began to rain.
| A．that | B．what |
| C．which | D．who |
—Sir, I feel it complicated to apply to a university abroad.
—Why not read our guide? This is ________ the relevant information is available.
| A．what | B．how |
| C．where | D．why |