1.One theme that ＿ throughout this article is the influence of mothers on fathers and vice versa.
(A) specifies (B) recurs (C) engages (D) obligates
2.The timing belt ＿ shows signs of wear after about 200,000 miles.
(A) character (B) characterize (C) characteristic (D) characteristically
3,If there is any ＿ of the manager's involvement, we need to follow up swiftly and thoroughly.
(A) imply (B) implicit (C) implicated (D) implication
4.A jar of dried basil or even a basil plant would be a more appropriate ＿than coriander.
(A) allocation (B) substitution (C) avoidance (D) register
5.UI developers had a hard time figuring out ＿ the layout wasn’t exactly what they expected.
(A) which (B) why (C) when (D) where