[ Tenses ]
We use the (…) with sequencing expressions (when, after, by the time, as soon as) when one event happened before another event.
A. past simple
B. past continuous
C. past perfect
D. past perfect continuous

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Subject-Verb Agreement › ViewThe world (change, changes) so rapidly that we can hardly keep up.
A. Change
B. Changes
Conditional Sentences › View
He never buys lunch
A. if he wouldn’t have cash.
B. if he have no cash.
C. if he doesn’t have cash.
D. if he didn’t have cash.
Simple Past or Past Continuous › ViewWe … in this restaurant two days ago.
A. ate
B. eaten
C. eating
D. eat
Present Tense › View
Forming Present Continuous tense: Fill in the blank with the correct form of the verb: She ________ (read) a book now.
A. was reading
B. will read
C. is reading
D. readed