He s ____ to his family because he never tells them he’s working late.

A) aliens B) amateurs C) juniors D) editors

A) ensure B) promise C) guarantee D) assure

A) intricate C) indispensable

B) varied D) equable

A) difficulties in finding C) difficulty to find

B) difficulty in finding D) trouble to find

A) forward C) out

B) about D) to

A) cannot help to laugh C) cannot but laughing

B) cannot help laugh D) cannot help but laugh

A) many among C) many ones of which

B) many in which D) many of which

A) made C) having made

B) being made D) to be made

A) increasing B) increase C) to increaseD) have increased

A) except for B) besides C) except that D) because