I don't think you can work out the maths problem ____ the teacher's help.
| A．since | B．unless | C．because | D．without |
–Hi, Daniel, you are the right person for this job and it’s well paid. Apply for it if you are interested.
– ________? My present job is fun to me.
| A．Why bother | B．Why not |
| C．So what | D．What reason |
The soldiers soon reached ________ was once an old temple ________ the villagers used as a school.
| A．which, where | B．where, which |
| C．what, which | D．what, where |
After Chang’e-3 landed on the moon on Dec 14, China became the third country _________ this after the US and the former Soviet Union.
| A．having achieved | B．achieving |
| C．achieved | D．to have achieved |
---Excuse me, has the train from Beijing arrived yet?
--- ________, you are three quarters earlier. It's only 9 now.
| A．Unconsciously | B．Instantly |
| C．Absolutely | D．Actually |
The speed limit for bicycles on campus is 15 mph, ___________ otherwise posted.
| A．unless | B．until |
| C．since | D．however |