Find the one choice that best completes the sentences

Precious metals such as gold, silver ___ for making jewelries.

A.is used B.used to C.used D.are used

Đề sai nhớ nhắc mình nha :D

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Frenda came to the meeting but Charles didn't. I wish he ___ there.

A.did B.came C.were D.had come

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It's pouring with rain again! If only I ___ an umbrella

A.having B.had C.have D.had had

Giải thích giùm lun nha :DD

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Tan doesn't know ___ about sports.

A.something B.nothing C.things D.anything