.Unfortunately, when I dropped in, Doctor Li _____ for Qinghai to join
in the fight against the earthquake, so we only had time for a few words
| A．just left | B．has just left | C．is just leaving | D．was just leaving |
Green economy offers a new model ________ people could both protect the climate and develop the economy, according to what Li said at the International Cooperative Conference on Green Economy and Climate Change.
| A．how | B．why | C．where | D．which |
________in a heavy traffic jam in a taxi while you are hurrying to the airport is quite an unpleasant experience．
| A．Having caught | B．Being caught | C．Caught | D．Having being caught |
—This morning your mobile phone was always busy. I couldn’t ________ to you until several attempts.
—Oh, I’m sorry. I was discussing the price of our products with a client over the phone.
| A．get over | B．get through | C．get across | D．get on |
Many early Europeans, ________ the earth to be flat, feared that Columbus would fall off the edge of the earth.
| A．believing | B．having believed | C．believed | D．to believe |
With so many orphans ________，the charity organization calls for more donations.
| A．to be looked after | B．being looked after | C．to look after | D．looked after |