Alice didn’t want her parents to know .
| A．what has she done | B．what was she doing |
| C．how she had done | D．what she was doing |
Oct.1st, ______is our National Day, is always celebrated with singing and dancig.
| A．as | B．that | C．when | D．which |
Young people go to college with the expectation that______educated people get a higher pay.
| A．good | B．better | C．best | D．the best |
Only when Tom fully recovered______back to work.
| A．did he go | B．he went | C．had he gone | D．he had gone |
The couple finally bought the house they wanted, for they______enough money.
| A．had saved | B．were saving | C．would save | D．were to save |
You look so tired. You______have stayed up late again.
| A．should | B．can | C．may | D．must |