It was five o’clock in the afternoon ____they arrived at the hotel.
| A．since | B．before | C．that | D．when |
Provide your doctor with a detailed medical history ________ he can give you accurate treatment.
| A．even if | B．in case |
| C．so that | D．as though |
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 |