______has the children burdened with too much homework nowadays?
| A．It is who that | B．Who is it that |
| C．It was who that | D．Who was it that |
Thereisnodoubt_____100yearsagoanimaltestingwascruelbuttoday
animalsinexperimentsareverywelltakencareof.
| A．whether | B．that | C．where | D．which |
It was on the farm _____he learned how to grow vegetables.
| A．that | B．when | C．where | D．which |
----I’m going downtown. ----Come on, _______.
| A．I’ll give you a lift | B．You are welcome | C．Don’t do that | D．Come with me |
My old car I had had ____________ yesterday.
| A．repaired, broke down | B．repair, broke up |
| C．repairing, broke out | D．repaired, broke into |
The meeting held in 1978 was _________________.
| A．of great significance | B．of much important |
| C．in importance | D．of very significance |