My brother is an active boy, he often risks _____ mountain with his friends.
| A．climb | B．climbing | C．to climb | D．climbs |
－Hi, Bruce. Here’s a letter for you.
－Thanks. I wonder_________.
| A．who that letter was from | B．who was from that letter |
| C．who was that letter from | D．who from that letter was |
If by any chance Peter comes to us, please ask him to leave a _________.
| A．letter | B．sentence | C．message | D．notice |
－Where’s Lisa, Eric?
－She __________ to the library.
| A．goes | B．had gone | C．has gone | D．would go |
I don’t remember when and where I __________ this umbrella.
| A．buy | B．have bought | C．will buy | D．bought |
－What’s his brother?
－He is a teacher. He__________ maths at a school.
| A．taught | B．has taught | C．teaches | D．will teach |