_____ hard, you will succeed.
| A．Having worked | B．Being worked | C．To working | D．Working |
Generally speaking, ______according to the directions, the drug has no side effect.
| A．when taking | B．when taken | C．when to take | D．when to be taken |
Please _____all the numbers. Those numbers______10,000.
| A．add to , add up | B．add up, add up to |
| C．add up , add to | D．add up to, add to |
---Kevin, you look worried. Anything wrong ?
---Well, I _____ a test and I’m waiting for the result.
| A．will take | B．had taken | C．took | D．take |
There was _____ time when everything to do with ____nature could keep Anne spellbound.
| A．a, the | B．the, a | C．a, / | D．the , the |
_____ impressed me was the boy’s ability to deal with this kind of difficult physics problem.
| A．Which | B．What | C．It | D．That |