All the task __________ ahead of time, so they decided to go on holiday for a week.
| A．having finished | B．had finished | C．having been finished | D．had been finished |
This simple vehicle could let me ________ long distances in a fairly short time.
| A．cover | B．drive | C．walk | D．include |
They have a good knowledge of English but little _______ they know about German.
| A．have | B．did | C．had | D．do |
If you go by ______ train, you can have quite a comfortable journey, but make sure you get _____ fast one.
| A．the, the | B．/, a | C．the, a | D．/, / |
______we understand things has a lot to do with what we feel.
| A．What | B．How | C．Why | D．Which |
The famous musician as well as his students referred to ______to perform at the opening ceremony of the 2012 Taipei Flower Expo.
| A．was invited | B．were invited |
| C．have been invited | D．has been invited |