After _____ seemed an endless wait, it was his turn to enter the director’s office.
| A．that | B．it | C．what | D．which |
—Where is Peter? —He _____ to Shanghai.
| A．went | B．had gone | C．has been | D．has gone |
My brother _____ the Youth League since 1990.
| A．joined | B．has been in | C．has joined | D．had joined |
I haven’t seen her _____.
| A．two weeks ago | B．since two weeks |
| C．for two weeks | D．before two weeks |
Don’t get that ink on the shirt, for it _____.
| A．doesn’t wash out | B．won’t be washing out |
| C．isn’t washing out | D．won’t wash out |
Continue heating until steam _____.
| A．has appeared | B．appear | C．appeared | D．will appear |