Don’t touch ______ live wire, or you will get ______ shock.
Two middle-aged passengers fell into the sea. ____, neither of them could swim. A. In fact B. Luckily. Naturally D. Unfortunately
-What are on show in the museum? -Some pictures ____ by middle-school students. A. taking B. having been taken. taken D. being taken
Even if you are an experienced teacher, you sometimes ____ make some mistakes. A. can B. must. should D. will
His parents put a lot of effort into getting him ____ to a key school.
Some of the students have already learned enough English to ____a conversation with a native English speaker.