He___to meet us at the station, but didn't see us.
| A． did go | B．did went | C． goes | D．had |
I'll come to pay a visit to you if ________ this weekend.
| A．you're convenient |
| B．it is convenient for you |
| C．you feel convenient |
| D．it is convenient with you |
Tom should not be sent to carry out the task________，he hasn't had enough experience.
| A．for a start |
| B．by the way |
| C．on the other hand |
| D．sooner or later |
Earth Day is celebration of life and our planet. It is a reminder that we need to ________the world we live in and that we should learn to respect life and nature.
| A．care about |
| B．think of |
| C．refer to |
| D．watch out |
After many attempts，she ________managed to get promotion.
| A．immediately |
| B．suddenly |
| C．naturally |
| D．eventually |
There is no ________to what you can do if you try.
| A．number |
| B．wonder |
| C．limit |
| D．matter |