As you wander through the streets, you see thousands of masks but you have no idea the faces be——青夏教育精英家教网——

As you wander through the streets, you see thousands of masks but you have no idea_____ the faces behind them look like.

The question______new measures should be taken to control the terrible air pollution is______puzzles scientists a lot.

B．which; that

D．which; that

A serious illness, ______ its nature, is almost always painful.

This is my own restaurant. You can come to eat here ____ you like.

Someone called me up in the middle of the night, but they hung up ________I could answer the phone.

The problem will appear____ a different welfare system will be created.

_________ you may have, you should gather your courage to face the challenge.

A．Whatever serious a problem	B．However serious a problem
C．However a serious problem	D．No matter how a serious problem

__________ difficult the task may be, we will try our best to complete it in time.

If you are traveling the customs are really foreign to your own, please do as the Romans do.

Nobody believed his reason for being absent from the class he had to meet his uncle at the air port.

0 97583 97591 97597 97601 97607 97609 97613 97619 97621 97627 97633 97637 97639 97643 97649 97651 97657 97661 97663 97667 97669 97673 97675 97677 97678 97679 97681 97682 97683 97685 97687 97691 97693 97697 97699 97703 97709 97711 97717 97721 97723 97727 97733 97739 97741 97747 97751 97753 97759 97763 97769 97777 151629