Beijing was attacked by such a terrible sandstorm ______few citizens had ever experienced before.
| A．and it was | B．as | C．that | D．which |
He started to walk faster and the children had to run to ________him.
| A．come up with | B．catch up with | C．keep up with | D．put up with |
This chapter is so difficult to ______ that I shall have to read it again later.
| A．read | B．know | C．find | D．digest |
I lost my ______ and fell off the bike.
| A．weight | B．balance | C．way | D．legs |
---Do you know where David is? I couldn’t find him anywhere.
---Well. He ______ have gone far----his coat’s still here.
| A．shouldn’t | B．mustn’t | C．can’t | D．wouldn’t |
You can’t imagine that a well-behaved gentleman _____ be so rude to a lady.
| A．might | B．need | C．should | D．would |