[ Grammar ]
How often has Miss Lin come to visit you recently?” – “She _________ here twice in 1986”
A. was
B. be
C. is
D. has
Select your answer:

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Conditionals › ViewIdentify the conditional conjunction in the sentence: ‘Unless you finish your homework, you cannot go out.’
A. Although
B. If
C. Because
D. Unless
Grammar › View
Choose the correct option to complete the sentences:
Companies ___________ invest in technology to communicate with customers online.
___
A. have to
B. mustn’t
