Chatting online can be _____fun, but kids must be sure they stay safe on _____web.
| A．不填; a | B．a; the | C．不填; the | D．a; a |
- What TV programs are you watching these days?
- Well, I’d rather read than watch TV. The programs seem ________ all the time.
| A．to get worse | B．getting worse | C．to be getting worse | D．to have got worse |
- Where have you been all day?
- We ________ some lovely children and it was dark by the time we got away.
| A．met | B．would meet | C．have met | D．had met |
What if we meet with a situation ________ none of us are able to deal with?
| A．where | B．in which | C．what | D．that |
The secretary has a lot of things to ________ in the office since she has been away for quite a few days.
| A．make up | B．take up | C．work out | D．carry out |
________ your composition carefully, some spelling mistakes can be avoided.
| A．Having checked | B．Checking | C．If you check | D．To check |