No matter how bright a talker you are, there are times when it's bettersilent.
| A．remain | B．be remaining |
| C．having remained | D．to remain |
It was in Beihai Park _____ they made a date for the first time ______ the old couple told us their love story.
| A．where; that | B．that; that | C．where; when | D．that; when |
.Only when your identity has been checked ________.
| A．you are allowed in | B．you will be allowed in | C．will you allow in | D．will you be allowed in |
More and more people are beginning to _____ importance to living a low-carbon(低炭) life.
| A．inspect | B．attach | C．express | D．earn |
The number of people visiting the exhibition ______ 50, and a number of them ____ painters.
| A．was; was | B．were; was | C．was; were | D．were; were |
Although it’s at ____ dusk, the children don’t get tired of playing ____ football outside.
| A．the; the | B．/; / | C．/; the | D．the; / |