---It’s raining! When did it start?
---I don’t know exactly. In fact, it ____ all this afternoon.
| A．lasts | B．has lasted | C．lasted | D．will last |
I don’t know if he_________here. If he ___________tomorrow, I will tell you.
| A．comes; comes |
| B．will come; comes |
| C．comes; will come |
| D．will come; will come |
The world’s population is getting larger and larger, so scientists are trying to ______ new ways to solve the food shortage.
| A．keep up with | B．come up with |
| C．make up with | D．catch up with |
He finds watching movies ______because the people speak too quickly.
| A．frustrating | B．frustrated | C．frustrate | D．frustration |
E-mail is very popular today. People hardly post letters, _________?
| A．did they | B．do they | C．didn’t they | D．don’t they |
—Who helped Jessie with her English?
—_______, she taught herself.
| A．Anybody | B．Somebody | C．Nobody | D．Everybody |