I am so tired，for I ________ English for 2 hours.
| A．is studying | B．have been studying |
| C．was studying | D．had been studying |
The form cannot be signed by anyone ___________ yourself.
| A．rather than |
| B．other than |
| C．more than |
| D．better than |
The dog may be a good companion for the old. ___________, the need to take it for walks may be a disadvantage.
| A．Besides |
| B．However |
| C．Therefore |
| D．Instead |
As is known to all language learners, the newly learnt words will soon be forgotten unless ___________ used in everyday communication.
| A．gradually |
| B．loosely |
| C．exactly |
| D．frequently |
—Hi, Mark. How was the musical evening?
—Excellent ！ Alex and Andy performed ___________ and they won the first prize.
| A．skillfully |
| B．commonly |
| C．willingly |
| D．nervously |
The young man couldn't afford a new car. ___________，he bought a used one.
| A．Besides |
| B．Otherwise |
| C．Instead |
| D．Still |