It is obvious that on no account _____ to the teacher that he has done the homework on his own.
| A．this is the first time he is lying | B．this is the first time he has lied |
| C．is this the first time has he lied | D．is this the first time he has lied |
Your new product ________ better if it is advertised on TV.
| A．sells | B．sold |
| C．will sell | D．would sell |
----I’ll come to see your performance at 9:00 tomorrow evening.
----I’ll sorry, but by then my performance _______ and I _________ reporters in the meeting room.
| A．will end; will meet |
| B．will have ended; will be meeting |
| C．will be ended; am going to meet |
| D．is to end; will meet |
Two-thirds of the coins dug up on the island ________ from the year 275AD to 221BC.
A. datesB. date
C. is dated D. are dated
There is only one of the oldest customs that ________ in this district up to now.
| A．was kept | B．were kept |
| C．has been kept | D．have been kept |
Modern teaching equipment as well as tens of computers _______ to the village school last week.
| A．were sent | B．was sent |
| C．has sent | D．had been sent |