34. Scientists generally agree that Earth’s climate will warm up over the next 50 to 100 years_________ it has warmed in the 20,000 years since Ice Age.
——Did you find the missing couple in the mountain yesterday? ——No, but we _____ to get in touch with them ever since.
I think you should go back to your _____ plan, which is much more practical than the present one.
——Jim is addicted to novels recently. ——Yes, that might _____ why he did so badly in the last test.
I was surfing the Internet _____of successful rendezvous and docking of Shenzhou-VIII and Tiangong-I.
No one expected house prices to fall, but _____ that's exactly what happened.