We can live without clothes, but food and drink are _____.
| A．available |
| B．reliable |
| C．essential |
| D．traditional |
Every means _________tried but without any result.
| A．have been | B．has been |
| C．are to be | D．is to be |
Do you wake up every morning __________ energetic and ready to start a new day?
| A．feel | B．to feel |
| C．feeling | D．felt |
We must keep in mind the fact __________ China is still a developing country.
| A．whether | B．that |
| C．why | D．when |
My brother _________while he ________his bicycle and hurt himself.
| A．fell; was riding | B．fell; were riding |
| C．had fallen; rode | D．had fallen; was riding |
Larry asked Bill and Peter to go on a picnic with him, but ________ of them wanted to, because they had work to do.
| A．either | B．any |
| C．neither | D．none |