I needn’t have been in that hurry. The flight to Chongqing ______ due to the foggy weather.
| A．has cancelled | B．was cancelled |
| C．will be cancelling | D．had cancelled |
Male nurses are not____________are needed most, but female doctors are.
| A．who | B．that | C．what | D．those |
The wild flowers looked like a soft orange blanketthe desert.
| A．covering | B．covered | C．cover | D．to cover |
Generally speaking, ______ according to the directions, the drug has no side effect.
| A．when taking | B．when taken | C．when to take | D．when to be taken |
My parents live in a small village. They always keep a lot of candles in their house _______ there is a power out.
| A．if | B．unless | C．in case | D．so that |
_______ at the back of the room was a shy girl with two big eyes.
| A．Sat | B．Sit | C．Seating | D．Seated |