There must be ______ book which could help .
| A．some | B．any | C．one | D．one useful |
They dug _____,then put the box in it.
| A．a three feet deep hole | B．a hole of three feet |
| C．a three feet deep hole | D．a hole of three feet deep |
Glad to see you back. How long __ in Russia?
| A．did you stay | B．have you stayed | C．were you staying | D．have you been staying |
They lived a ____ life in the countryside.
| A．quiet | B．still | C．silent | D．calm |
---Have you decided already?
---Yes, I __ at once.
| A．have decided | B．decided | C．will decide | D．had decided |
His success is____ by talent as by energy.
| A．not so much | B．so not much | C．much not so | D．so much not |