Do you know _an "o" and _ "u" in the word "computer"?
| A．there is, an | B．is there, an |
| C．there is, a | D．is there, a |
What ________ it is to have a picnic in ________ weather!
| A．a great fun; so fine | B．a great fun; such a fine |
| C．great fun; so fine a | D．great fun; such fine |
-Linda, shall we go and watch Holland Dafeng Flowers next month?
-_______ we have the tickets.
| A．If | B．Unless | C．Because | D．Since |
—Could you tell me__________ ? —Since 2010．
| A．how long has Yancheng BRT been in use |
| B．how soon will Yancheng BRT be in service |
| C．how long Yancheng BRT has been in use |
| D．how soon Yancheng BRT will be in service |
Many Chinese students think science subjects are _____ foreign languages.
| A．more difficult as | B．much difficult than |
| C．1ess difficult than | D．so difficult as |