Gun control is a subject __________ Americans have argued for a long time.
| A．of which | B．with which | C．about which | D．into which |
"Nothing in this letter＿＿＿be considered as a license to use the artist’s personal possessions", the judge declared on the court.
| A．can | B．shall | C．must | D．may |
They are similar＿＿＿appearance, but differ＿character
| A．to; from | B．in; from | C．to; in | D．in; in |
＿＿＿early for his date, Mark spent time reading the newspaper
| A．Arriving | B．Having arrived | C．Arrived | D．To arrive |
Large quantities of information＿＿＿since then as to how the program has worked.
| A．has been offered | B．were offered | C．have been offered | D．was offered |
Helen has got＿＿＿it takes to be a great tennis player．In other words, she has the potential to become world famous.
| A．how | B．what | C．when | D．that |