She was so _____________ in her job that she didn’t hear anybody knocking at the door.
| A．attracted | B．absorbed | C．drawn | D．concentrated |
---Jack failed the driving test again．
---The question is_____ we can help him avoid making the same mistake．
| A．how | B．why | C．what | D．whom |
The world is full of wonders, _____ we open our eyes to see them．
A． if only B． as if C even if D． only if
It was not until midnight ______ they reached the camp site.
| A．that | B．when | C．while | D．as |
The first decade of the 21st century ______ breathtaking, non-stop development in China．
| A．witnesses | B．witnessed |
| C．will witness | D．had witnessed |
______is expected, according to the online survey, is that house prices will not go up any more.
| A．As | B． It | C． Which | D． What |